Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 1.531
Filter
1.
Arch. latinoam. nutr ; 74(2): 74-82, jun. 2024. tab
Article in English | LILACS, LIVECS | ID: biblio-1561530

ABSTRACT

Introduction: Child health is conditioned by the circumstances of pregnancy, childbirth, and early life. Objective: To describe the maternal and neonatal characteristics of live births (LBs) in the Information System on Live Births of Santa Catarina (SC), Brazil. Materials and methods: A cross-sectional study describedthe maternal and neonatal characteristics of 940,059 LBs, from 2010 to 2019. Pearson's chi-square test and Fisher's exact test were conducted, with a statistical significance level of p < 0.05. Results: The mean values of maternal age, number of live children, and number of fetal deaths as well as abortions were 27.1 years, 0.9, and 0.2, respectively. The averages of the number of gestation weeks, number of prenatal consultations, the start date of the prenatal care, and birth weight were 38.5 weeks, 8.1 months, 2.5 monthsand 3,217.1 grams, respectively. Low birth weight (LBW) was prevalent among mothers without education (p < 0.001), including those without prenatal visits (p < 0.001). A higher prevalence of being underweight was observed among female neonates (p < 0.001) and with a maternal age of ≥ 40 years (10.8%; p < 0.001) compared to newborns with good vitality. Newborns with good vitality had a low prevalence of underweight (p < 0.001). The frequency of the variables studied increased, comparing the beginning and end of the period and whether the differences are statistically significant. Conclusions: The study draws attention to the need for interventions to improve the indicators that determine LBW(AU)


Introducción: La salud infantil está condicionada por las circunstancias del embarazo, parto y primeras etapas de la vida. Objetivo: Describir las características maternas y neonatales de los nacidos vivos en el Sistema de Información de Nacidos Vivos de Santa Catarina, Brasil. Materiales y métodos: Estudio transversal describiendo las características maternas y neonatales de 940.059 nacidos vivos entre 2010 y 2019. Se realizó la prueba de chi cuadrado de Pearson y exacta de Fisher y se estableció p < 0,05. Resultados: Los valores medios para la edad materna, el número de nacidos vivos y el número de mortinatos y abortos espontáneos fueron 27,1, 0,9 y 0,2, respectivamente. Las medias del número de semanas de gestación, el número de visitas prenatales, la fecha de inicio de la atención prenatal y el peso al nacer fueron 38,5 semanas (DE 2,2), 8,1 meses, 2,5 meses y 3 217,1 gramos, respectivamente. El bajo peso al nacer (BPN) fue prevalente entre las madres sin estudios (p < 0,001), incluidas las que no acudieron a una cita prenatal (p < 0,001). Hubo una mayor prevalencia de BPN en neonatos de sexo femenino (p < 0,001) con madres de edad ≥ 40 años (10,8%; p < 0,001). Los neonatos con buena vitalidad tuvieron una baja prevalencia de BPN (p < 0,001). La frecuencia de las variables estudiadas aumentó al comparar el inicio y el final del período y si las diferencias son estadísticamente significativas. Conclusiones: El estudio llama la atención sobre la necesidad de intervenciones para mejorar los indicadores que determinan el BPN(AU)


Subject(s)
Infant, Newborn , Infant, Newborn , Pregnancy , Child Health , Maternal Age , Live Birth , Child Health Services
2.
J. Health Sci. Inst ; 41(3)jul-sep 2023. Tabelas
Article in Portuguese | LILACS | ID: biblio-1531620

ABSTRACT

Objetivo ­ Avaliar as práticas de aleitamento materno em crianças com Síndrome de Down. O aleitamento materno é uma prática es-sencial para o desenvolvimento do hábito alimentar dos lactentes. O público que possui Síndrome de Down precisa de um auxílio nesse momento devido às características decorrentes da alteração genética que podem influenciar negativamente a prática. Métodos ­ Estudo transversal, com questionário direcionado a mães de crianças com Síndrome de Down participantes de grupos fe-chados de Síndrome de Down na rede social Facebook®, onde foram coletadas características socioeconômicas destas mulheres, além de características de sua gestação e informações pertinentes a crianças. Resultados ­ Observou-se que 44,0% tiveram dificuldade no aleitamento materno, e quase a metade das mães não conseguiram realizar o aleitamento materno exclusivo e a introdução alimentar de forma oportuna. Destaca-se, ainda, que 33,3% crianças receberam fórmula infantil e 30,5crianças leite de vaca. Conclusão ­ Diante deste cenário, é necessário que exista um acompanhamento dos profissionais da saúde durante a infância de indivíduos com Síndrome de Down, para que o desmame não ocorra precocemente.


Objective ­ To evaluate breastfeeding practices in children with Down syndrome. Breastfeeding is an essential practice for the development of infants eating habits. The public that has Down Syndrome needs help at this time due to the characteristics resulting from the genetic alteration that can negatively influence the practice. Methods ­ Cross-sectional study, questionnaire directed to mothers of children with Down Syndrome participating in closed groups of Down Syndrome on the social network Facebook®, where socioeconomic characteristics of these women were collected, as well as characteristics of their pregnancy and information relevant to the children. Results ­ It was observed that 44,0% had difficulties in breastfeeding, and almost half of the mothers were unable to perform exclusive breastfeeding and the introduction of food in a timely manner. It is also noteworthy that 33,3% children received an infant family and 30,5 children received cow's milk. Conclusion ­ Given this scenario, it is necessary that there is a monitoring of health professionals during childhood of obligation with Down Syndrome, so that weaning does not occur early.


Subject(s)
Humans , Infant, Newborn , Infant , Breast Feeding , Child , Down Syndrome , Mentors , Maternal Age , Milk , Muscle Hypotonia
3.
Braz. j. oral sci ; 22: e239246, Jan.-Dec. 2023. tab
Article in English | LILACS, BBO | ID: biblio-1399767

ABSTRACT

Aim: To assess the prevalence of cleft lip and/or cleft palate (CL/P) and associated variables in neonates admitted to neonatal intensive care units (ICU). Methods: Medical charts for neonates born and admitted to the ICU between 2012 and 2018 were reviewed. Obstetric and neonatal variables were collected by a trained researcher. In the case group, all neonates with CL/P were included. The control group was formed by matching sex, prematurity and month of birth using random number generation. Neonates with congenital malformations were excluded from the control group. Adjusted logistic regression was used (p<0.05). Results: The prevalence of CL/P was 0.43% (n=15). Five cases were excluded, as pairing was not possible. Twenty neonates were included in the control group. In the final multivariate model, CL/P was only associated with increased maternal age. For each year of increase in maternal age, neonates had a 35.2% higher chance of presenting CL/P (95% confidence interval: 1.021­1.792). Conclusions: Higher maternal age was associated with higher occurrence of CL/P in neonates admitted to the ICU. No other neonatal or maternal independent variables were associated with CL/P. Due to missing data, interpretation of study results must be approached with caution


Subject(s)
Humans , Male , Female , Infant, Newborn , Adolescent , Adult , Young Adult , Cleft Lip/epidemiology , Cleft Palate/epidemiology , Maternal Age , Intensive Care Units, Neonatal , Case-Control Studies , Prevalence , Retrospective Studies , Cleft Lip/etiology , Cleft Palate/etiology
4.
Rev. int. sci. méd. (Abidj.) ; 25(1): 38-43, 2023. figures, tables
Article in French | AIM | ID: biblio-1442351

ABSTRACT

L'échographie obstétricale est l'examen de référence dans l'étude et le suivi des malformations fœtales que sont des anomalies morphologiques et fonctionnelles congénitales. L'objectif était de déterminer la fréquence et les types de malformations fœtales diagnostiquées à l'échographie obstétricale à Bouaké. Méthodes. Il s'agissait d'une étude transversale rétrospective descriptive de 2010 à 2019 au centre hospitalier et universitaire (CHU) de Bouaké. Ont été incluses dans l'étude, toutes les femmes enceintes ayant présenté au moins une malformation fœtale au cours de la grossesse. Les variables étudiées étaient : l'âge de la mère, l'âge gestationnel, le sexe du fœtus et les caractéristiques échographiques des malformations fœtales retrouvées. L'analyse statistique s'est faite à l'aide des tests de Khi2 et de Fisher au seuil de signifi cativité situé à 5% (P<005). Résultats : Les malformations fœtales représentaient 43 cas sur 11879 échographies obstétricales soit une prévalence de 0,36%. L'âge moyen des gestantes était de 40,23 ± 6,34 ans avec des extrêmes de 16 et 43 ans. Les malformations fœtales découvertes au troisième trimestre représentaient 67,44% des cas. Les anomalies malformatives prédominaient sur les fœtus de sexe masculin avec 62,8%. Les anomalies du système nerveux central (SNC) étaient les plus représentées avec 51,16 % suivies des anomalies uro-génitales (30,23 %). L'hydrocéphalie était la principale malformation du SNC avec 63,63% des cas. L'hydronéphrose représentait 76,93% des anomalies uro-génitales et l'omphalocèle était la malformation abdominale la plus représentée avec 60% des cas. Conclusion: L'échographie obstétricale occupe une place incontournable dans le dépistage, le suivi et la prise en charge des malformations fœtales


Subject(s)
Humans , Congenital Abnormalities , Anesthesia, Obstetrical , Gestational Age , Maternal Age , Hospitals
5.
Femina ; 50(12): 751-761, dez. 31, 2022. tab
Article in Portuguese | LILACS | ID: biblio-1414430

ABSTRACT

Objetivo: Caracterizar a população das gestantes em diferentes faixas etárias; avaliar desfechos maternos e neonatais em pacientes com idade materna avançada; determinar a faixa etária a partir da qual os desfechos adversos foram mais prevalentes. Métodos: Parturientes atendidas no Hospital do Servidor Público Estadual de São Paulo entre junho/2019 e maio/2020 foram divididas em três grupos ­ 20 a 34 anos; 35 a 39 anos; 40 anos ou mais ­ e analisadas quanto a diversas variáveis. Resultados: Entre as gestantes do Serviço, 44,2% tinham idade materna avançada. A amostra foi composta por 927 pacientes, a maioria com relacionamento conjugal estável (75,2%) e ensino de nível superior (74,7%). Independentemente do grupo etário, foram observados elevados índices de obesidade (25,9%), sobrepeso (39,7%) e cesariana (76,4%). A frequência de iteratividade, diabetes gestacional e doença hipertensiva específica da gestação foi maior a partir dos 35 anos, e a frequência de hipertensão arterial crônica foi maior a partir dos 40 anos. Neonatos de pacientes com 40 anos ou mais tiveram maiores índices de baixo peso ao nascer, óbito neonatal, Apgar de quinto minuto < 7 e necessidade de reanimação neonatal. Conclusão: Pacientes com idade materna avançada representaram porcentagem expressiva da população e tiveram maior frequência de desfechos adversos. Complicações obstétricas foram mais prevalentes a partir dos 35 anos, com destaque para diabetes gestacional e distúrbios hipertensivos. Resultados neonatais desfavoráveis, como baixo peso ao nascer e óbito neonatal, foram mais prevalentes a partir de 40 anos.


Objective: Featuring the population of pregnant women in different age groups; assessing maternal and neonatal outcomes in patients at advanced maternal age; determining the threshold age for the potential prevalence of adverse outcomes. Methods: Women in labor assisted at Hospital do Servidor Público Estadual de São Paulo between June/2019 and May/2020 were divided into three age groups ­ 20 to 34 years; 35 to 39 years; over 40 years ­, who were assessed for several variables. Results: 44.2% of pregnant women in this Service were at advanced maternal age. The sample counted on 927 patients, most of them declared stable marital relationships (75.2%) and College degree (74,7%). High obesity levels (25.9%), overweight (39.7%) and cesarean delivery (76.4%) were observed, regardless of age group. Maternal request was the main indication for cesarean surgery. Iteration frequency, gestational diabetes and pregnancy-specific hypertensive disease was higher from the age of 35 years, on. Chronical high blood pressure was higher in the age group over 40 years. Newborns from patients older than over 40 years presented higher low weight at birth index, neonatal death, 5th minute Apgar score < 7 and the need of neonatal resuscitation. Conclusion: Patients at advanced maternal age recorded higher obstetric adversity frequency in the age group over 35 years, with emphasis on gestational diabetes and high blood pressure. Unfavorable neonatal outcomes related to low weight at birth and neonatal death were more prevalent in the age group over 40 years.


Subject(s)
Humans , Female , Pregnancy , Infant, Newborn , Pregnancy Complications/epidemiology , Diabetes, Gestational/epidemiology , Pregnant Women , Maternal Health , Hypertension/epidemiology , Obesity/epidemiology , Apgar Score , Prenatal Care , Comorbidity , Retrospective Studies , Maternal Age , Sociodemographic Factors , Midwifery
6.
Más Vita ; 4(2): 257-266, jun. 2022. tab
Article in Spanish | LILACS, LIVECS | ID: biblio-1392273

ABSTRACT

El embarazo añoso representa una problemática de salud pública debido a sus repercusiones en el binomio madre-hijo. Objetivo. Determinar las complicaciones materno-fetales en embarazadas añosas atendidas en el Centro de Salud Tipo C San Jacinto de Buena Fe durante el periodo enero y diciembre del 2020. Materiales y métodos. El diseño de investigación observacional, cuantitativo, retrospectivo, descriptivo de corte transversal con una muestra de 80 gestantes mayores de 35 años, como instrumento se empleó un formulario de recolección de datos que constó de 12 ítems validados por un juicio de expertos. Resultados. Las caracteristicas sociodemográficas de interés en las pacientes del estudio fueron: grupo etario de 35-37 años con el 67,2 %, unión libre con 52,5 %, grado de instrucción primario con el 46,3 % y procedencia rural en el 95 %; entre las complicaciones maternas: ruptura prematura de membranas con el 25 %, trastornos hipertensivos en el 16,2 % y aborto espontáneo con el 13,7 %; las complicaciones fetales: prematuridad con el 17,5 %, bajo peso al nacer con el 17,5 % y síndrome de dificultad respiratoria con el 11,2%. Conclusión. Fue posible establecer las características sociodemográficas de interés en la muestra de estudio, identificar algunos factores de riesgo de complicaciones y determinar las complicaciones que comprometen a la madre y al hijo/a en embarazos de edad avanzada.


Elderly pregnancy represents a public health problem due to its repercussions on the mother-child binomial. Objective. To determine the maternal-fetal complications in elderly pregnant women treated at the San Jacinto de Buena Fe Type C Health Center during the period January and December 2020. Materials and methods. The observational, quantitative, retrospective, descriptive cross-sectional research design with a sample of 80 pregnant women over 35 years of age, as an instrument a data collection form that consisted of 12 items validated by an expert judgment was used. Results. The sociodemographic characteristics of interest in the study patients were age group 35-37 years with 67.2%, free union with 52.5%, grade of primary education with 46.3% and rural origin in 95 %; among maternal complications: premature rupture of membranes with 25%, hypertensive disorders in 16.2% and spontaneous abortion with 13.7%; fetal complications: prematurity with 17.5%, low birth weight with 17.5% and respiratory distress syndrome with 11.2%. Conclusion. It was possible to establish the sociodemographic characteristics of interest in the study sample, identify some risk factors for complications, and determine the complications that affect the mother and the child in older pregnancies(AU)


Subject(s)
Humans , Female , Pregnancy , Adult , Pregnancy , Risk Factors , Maternal Age , Infant, Premature , Abortion, Spontaneous , Age Groups
7.
Rev. habanera cienc. méd ; 21(3): e4280, mayo.-jun. 2022. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1409484

ABSTRACT

Introducción: El abandono de la lactancia materna es uno de los problemas que enfrenta el Sistema Nacional de Salud en Cuba por las consecuencias desfavorables que representa para la salud de los lactantes. Objetivo: Identificar la relación entre el abandono de la lactancia materna exclusiva y las afectaciones en la salud de los lactantes. Material y Métodos: Se realizó un estudio descriptivo, retrospectivo de corte transversal, en 105 lactantes del Policlínico Aleida Fernández Chardiet nacidos en 2019, cuyas madres dejaron de utilizar la lactancia materna exclusiva antes del sexto mes. Las variables utilizadas fueron edad materna, tiempo de duración de la lactancia materna exclusiva, las enfermedades más frecuentes diagnosticadas en el niño y la necesidad de ingresos hospitalarios. Se aplicó la prueba no paramétrica de independencia Chi Cuadrado para demostrar la relación entre variables. Resultados: Predominó el abandono de la lactancia materna exclusiva antes de los 3 meses y no se encontró relación estadísticamente significativa entre esta y las afecciones más frecuentes de los lactantes (las IRA en 40 por ciento y las EDA en 23,8 por ciento). El 55,2 por ciento necesitó ingreso hospitalario antes del sexto mes y la relación con el abandono precoz de la lactancia materna exclusiva fue estadísticamente significativa. Conclusiones: El abandono precoz de la lactancia materna exclusiva afecta la salud de los lactantes y aunque las afecciones no tuvieron una relación estadísticamente significativa con aquella sí tienen una elevada frecuencia en estos niños de tan corta edad(AU)


Introduction: Breastfeeding withdrawal is one of the challenges faced by the Cuban National Health System due to its adverse consequences on the health of babies. Objective: To identify the relationship between exclusive breastfeeding withdrawal and health disorders in babies. Material and Methods: A descriptive, retrospective, cross-sectional study was carried out on 105 breastfed babies from "Aleida Fernández Chardiet" Policlinic who were born in 2019 and were precociously weaned from exclusive breastfeeding before the sixth month. The variables used were: maternal age, duration of exclusive breastfeeding, most frequent diseases diagnosed in the child, and need for hospital admission. The chi-squared non-parametric independence test was used to show the relationship among variables. Results: Exclusive breastfeeding withdrawal before the third month was predominant (71, 4 percent); the most frequent diseases diagnosed were respiratory diseases and diarrheas (40 percent and 23,8 percent, respectively); about half the babies required hospital admission (55,2 percent) before the sixth month; the relationship with early withdrawal of breastfeeding was statistically significant. Conclusions: Early withdrawal of breastfeeding has negative effects on the health of babies. Although the illnesses did not have a statistically significant relationship with it, a high frequency of their incidence was found in such young babies(AU)


Subject(s)
Humans , Female , Infant , Breast Feeding , Infant Health , Time Factors , Cross-Sectional Studies , Retrospective Studies , Maternal Age , Hospitalization
8.
J. pediatr. (Rio J.) ; 98(1): 69-75, Jan.-Feb. 2022. tab, graf
Article in English | LILACS | ID: biblio-1360563

ABSTRACT

Abstract Objective: To analyze gastroschisis annual incidence, mortality rates, and trends in the Brazilian state of Rio Grande do Sul from the year 2000 to the year 2017. Method: Population-based study with the analysis of the temporal trend of gastroschisis annual incidence and mortality rates. Data were obtained from the Live Birth Information System and the Mortality Information System, with the analysis performed by polynomial regression modeling. Results: There were 2,612,532 live births, 705 hospitalizations, and 233 deaths due to gastroschisis. The annual incidence of gastroschisis was 2.69 per 10,000 live births. The annual incidence rate increased by 85% in the total period (p = 0.003), and mortality was 33% in the 2000-2017 period. Maternal age < 25 years was a risk factor for gastroschisis (p < 0.001). Children were more likely to be born weighing < 2,500 g (p < 0.001) and with a gestational age < 37 weeks (p < 0.001). The annual incidence trend was to increase, and the mortality trend was to decrease. Conclusion: Similar to what has been described in several regions/countries, there was a trend showing an 85% increase in the annual incidence of gastroschisis (p = 0.003) and the mortality was 33% with a trend of decreasing (p = 0.002).


Subject(s)
Humans , Female , Pregnancy , Infant , Child , Adult , Gastroschisis/epidemiology , Brazil/epidemiology , Incidence , Maternal Age , Live Birth
9.
Physis (Rio J.) ; 32(2): e320218, 2022.
Article in Portuguese | LILACS | ID: biblio-1386834

ABSTRACT

Resumo As inovações científicas em torno do estudo de cromossomos humanos surgidas após a segunda metade do século XX consolidaram a inserção da genética na assistência em saúde, no que tange ao diagnóstico pré-natal. A associação entre idade materna e síndromes genéticas, proposta por pesquisadores da biomedicina, produziu determinações sobre risco, referidas a gestantes a partir de determinada idade. O artigo apresenta as concepções de risco em torno do que a biomedicina considera ser idade materna avançada de modo a configurar o que é classificado como gestação de risco. A análise documental em manuais médicos brasileiros e estrangeiros das especialidades obstetrícia e genética evidenciou diferentes concepções de risco em relação ao fator etário reprodutivo. A idade materna é um aspecto presente na obstetrícia enquanto fator de risco de doenças. Para a especialidade genética, a idade materna não é um fator central de risco reprodutivo. A pesquisa constatou que a classificação de uma idade materna ideal para gestar é relativa e suscetível a alterações, segundo o contexto sócio-histórico de cada sociedade.


Abstract Scientific innovations around the study of human chromosomes, which emerged after the mid 20th century, consolidated the incorporation of genetics in prenatal diagnosis. The link between maternal age and genetic syndromes, proposed by biomedical researchers, produced resolutions about risks to pregnant women of a certain age. The article presents biomedicine concepts for advanced maternal age classified as a risk pregnancy. The review of Brazilian and foreign medical manuals in obstetrics and genetics showed different conceptions of risk concerning the reproductive age factor. Maternal age is an aspect in obstetrics related to the risk of diseases. For genetic expertise, advanced maternal age is not a central factor of risk for reproduction. The research found that the classification of an ideal maternal age for pregnancy is relative and susceptible to changes according to the socio-historical context of each society.


Subject(s)
Humans , Female , Prenatal Diagnosis , Pregnancy/genetics , Maternal Age , Pregnancy, High-Risk/genetics , Genetic Counseling , Genetics, Medical , Chromosomes, Human , Genetic Diseases, Inborn , Obstetrics
10.
Rev Rene (Online) ; 23: e70958, 2022.
Article in English, Portuguese | LILACS, BDENF | ID: biblio-1355045

ABSTRACT

Objetivo: descrever as experiências de gestantes em idade materna avançada atendidas em hospital privado. Métodos:estudo qualitativo, realizado com 17 mulheres, por meio de entrevistas semiestruturadas via telefone. Os dados foram submetidos à Análise de Conteúdo Temática. Resultados: as participantes tinham idades entre 35 e 40 anos. Emergiram duas categorias: Experienciando a gestação como casal e família: o preparo do casal para a gestação e o parto (Gesta-ção a partir dos 35 anos como elemento de potencialidade; Mudança na rotina da família para a chegada do bebê) e Vi-venciando a gestação e suas alterações: percebendo a gesta-ção como uma vivência saudável e tranquila (Alteração dos padrões emocionais relacionados ao processo gestacional). Conclusão: vivenciar a gestação tardiamente não foi uma preocupação para as mulheres. A maturidade e as condições socioeconômicas favoráveis podem ter influência proteti-va para o transcorrer de gestações saudáveis em mulheres atendidas no serviço privado de saúde. (AU)


Subject(s)
Women's Health , Maternal Age , Pregnancy, High-Risk , Obstetric Nursing
11.
Afr. j. reprod. health ; 26(7): 1-7, 2022. tables, figures
Article in English | AIM | ID: biblio-1381439

ABSTRACT

This study's aim was to estimate the prevalence and maternal age and other risk factors of miscarriage among Sudanese women. Across-sectional study was conducted at the Saad Abuelela Tertiary Hospital in Khartoum, Sudan, from February to December 2019. Sociodemographic, obstetric and clinical data were collected. A multivariate logistic regression analysis was performed. Four hundred thirteen (20.5%) women reported experiencing a miscarriage. Risk factors included older age, high parity, histories of caesarean delivery, and obesity. Logistic regression showed that the lowest risk for women aged less than 20 years (adjusted odds ratio [AOR], 0.33) or 20 to 24 years (AOR, 0.57), primiparas (AOR, 0.42) and women educated below the secondary level (AOR, 0.78). Unlike the global age-associated risk of miscarriage, the risk of miscarriage among Sudanese women follows a unique curve in relation to maternal age. Interestingly, the curve showed a lower risk for women less than 20 years and at 40 years. (Afr J Reprod Health 2022; 26 [7]: 15-21).


Subject(s)
Risk , Maternal Age , Abortion, Spontaneous , Cesarean Section , Obesity
12.
Rev. ANACEM (Impresa) ; 16(1): 21-25, 2022. ilus, tab
Article in Spanish | LILACS | ID: biblio-1524205

ABSTRACT

Introducción: A nivel mundial la tasa de natalidad desde las últimas décadas ha venido en declive, por lo que adquiere relevancia investigar sus cambios. Objetivos: Cuantificar la tendencia de nacimientos en Chile según rango etario de la madre y sexo biológico del recién nacido en el periodo 2015-2020. Metodología: Se realizó un estudio observacional y ecológico, con los datos obtenidos del banco mundial y DEIS, para la población y nacimientos respectivamente. Los datos se dividieron según las edades maternas en tres grupos: <18 años, 18-34 años y ≥ 35 años. No se requirió comité de ética debido a que no se interviene con personas. Los autores no presentan conflicto de interés. Resultados: Se observó una disminución de los nacimientos del 22,6%, pasando de 244.626 el 2015 a 189.250 el 2020. Los nacimientos en el grupo etario de madres menores a 18 años disminuyeron un 82,13%, reduciéndose de 17.505 a 3.129, el rango de edad materna correspondiente al segundo grupo de 18 a 34 años, ubicó la mayor cantidad de nacimientos, manteniéndose alrededor de un 77,75% (neto), el rango ≥ 35 años, presentó un alza de un 17%, aumentando de 34.648 nacimientos a 40.539. Discusión: En Chile hay un descenso en los nacimientos dado a que la maternidad se está postergando, lo cual puede deberse a la educación sexual implementada en el país y la mayor participación de mujeres en ámbito laboral, esto sugiere una transición de una demografía estable a una regresiva.


Introduction: The birth rate has been declining worldwide since the last decades, so it is important to investigate its changes. Objectives: To quantify the trend of births in Chile according to age range of the mother and biological sex of the newborn in the period 2015-2020. Methodology: An observational and ecological study was conducted, with data obtained from the World Bank and DEIS, for population and births respectively. Data were divided according to maternal ages into three groups: <18 years, 18-34 years and ≥ 35 years. No ethics committee was required due to the fact that we did not intervene with individuals. The authors have no conflict of interest. Results: A decrease in births of 22.6% was observed, from 244,626 in 2015 to 189,250 in 2020. Births in the age group of mothers under 18 years decreased by 82.13%, decreasing from 17,505 to 3,129, the maternal age range corresponding to the second group from 18 to 34 years, located the highest number of births, remaining around 77.75% (net), the range ≥ 35 years, presented a rise of 17%, increasing from 34. Discussion: In Chile there is a decrease in births due to the fact that motherhood is being postponed, which may be due to the sexual education implemented in the country and the greater participation of women in the labor market, suggesting a transition from a stable demography to a regressive one.


Subject(s)
Humans , Female , Pregnancy , Child, Preschool , Child , Adolescent , Adult , Young Adult , Birth Rate/trends , Maternal Age , Chile/epidemiology
13.
Rev. Bras. Saúde Mater. Infant. (Online) ; 21(4): 1055-1064, Oct.-Dec. 2021. tab
Article in English | LILACS | ID: biblio-1360724

ABSTRACT

Abstract Objectives: describing maternal characteristics, risk behavior, obstetric data, prenatal care and childbirth in adolescent mothers in Brazil (age groups: 12-16 years and 17-19 years). Methods: hospital-based cross-sectional study substantiated by Nascer no Brasil", (Born in Brazil) data. The study encompassed puerperal adolescent mothers from all regions in the country, and their newborns. Chi-square test was used to compare adolescents in the 12-16 years old age group and those in the 17-19 years old age group. Results: pregnant women in the 12-16 years old age group mostly lived in the Northeast of Brazil (p=0.014); most of them did not have a partner (p<0.001), unplanned pregnancy (p<0.001), they had inadequate schooling for their age (p=0.033), had less than six prenatal consultations (p=0.021), were subjected to episiotomy (p=0.042) and accounted for the largest number of premature babies (p=0.014). Conclusions: puerperal women in the 12-16 years old age group presented vulnerability in their socioeconomic conditions, inadequate assistance at the prenatal and childbirth care, as well as their babies showed neonatal complications that pointed towards these adolescent mothers' need of multidisciplinary care.


Resumo Objetivos: descrever características maternas, comportamentos de risco, dados obstétricos, de pré-natal e parto de puérperas adolescentes do Brasil (12-16 anos e 17-19 anos). Métodos: estudo transversal, de base hospitalar, a partir de dados do estudo "Nascer no Brasil" composto por puérperas adolescentes e por seus recém-nascidos, em todas as regiões do país. Utilizou-se o teste qui-quadrado para comparar as adolescentes de 12-16 anos com as de 17-19 anos. Resultados: as gestantes de 12-16 anos viviam mais na região Nordeste do país (p=0,014), nelas foi mais frequente não ter companheiro (p<0,001), engravidar sem intenção (p<0,001), apresentar escolaridade inadequada para a idade (p=0,033), realizar menos de seis consultas de pré-natal (p=0,021), a episiotomia (p=0,042) e a prematuridade espontânea (p=0,014). Conclusão: as puérperas na faixa etária de 12-16 anos apresentavam mais condições de vulnerabilidade socioeconômica, atenção menos adequada no pré-natal e parto, além de complicações neonatais de seus bebês, sinalizando a necessidade de atenção multiprofissional a essas adolescentes.


Subject(s)
Humans , Female , Pregnancy , Infant, Newborn , Child , Adolescent , Adult , Pregnancy Complications , Pregnancy in Adolescence/statistics & numerical data , Risk-Taking , Risk Factors , Maternal Age , Health Vulnerability , Prenatal Care , Socioeconomic Factors , Brazil/epidemiology , Chi-Square Distribution , Cross-Sectional Studies , Postpartum Period
14.
Rev. méd. Chile ; 149(10): 1440-1449, oct. 2021. tab, ilus
Article in Spanish | LILACS | ID: biblio-1389371

ABSTRACT

BACKGROUND: Previous studies have shown a decrease in the maternal mortality (MM) rates in Chile, with a trend towards stability since 2001. However, some of its associated causes such as high blood pressure, obesity, or maternal age, have increased in the last years. AIM: To describe the trend and characteristics of MM in Chile between 1990 and 2018. MATERIAL AND METHODS: MM rates were calculated using death records available at the website of the Department of Health Statistics of the Ministry of Health, using the codes 630 to 679 of the International Classification Diseases (ICD)-9 (630-679) and O00-O99 from ICD-10. Live births were obtained from vital statistics of the National Statistics Institute (INE). The age at the time of death and the causes were recorded. Polynomial and Prais-Winsten modelings were applied. RESULTS: There were 1,728 maternal deaths with an overall rate for the period of 23 / 100,000 live births. An inflection of the trend was observed in 2003, with a decrease between 1990-2003 and an increase between 2004-2018. While in the 1990-2003 period all age groups decreased their rate, in 2004-2018 it increased significantly in the 20-34 age group. Concerning the causes, "other obstetric conditions not classified elsewhere" showed a steady upward trend, particularly the late maternal deaths or deaths from sequelae of obstetric causes (O96-O97). CONCLUSIONS: MM rates increased in Chile in recent years, mainly due to the increase in women aged 20 to 34 years and in causes referred to as "other obstetric conditions not classified elsewhere." It is possible that changes in risk factors and in the registries could explain this increase.


Subject(s)
Humans , Female , Pregnancy , Adult , Young Adult , Maternal Death , Registries , Maternal Mortality , Maternal Age , Live Birth
15.
Enferm. foco (Brasília) ; 12(2): 223-229, set. 2021. ilus, tab
Article in Portuguese | LILACS, BDENF | ID: biblio-1291237

ABSTRACT

Introdução: o adiamento da gestação ocorre por motivos diversos e possui maior risco de desenvolver complicações maternas, fetais e neonatais. O período do pré-natal se torna um momento propício para promoção da saúde dessas gestantes. Objetivo: descrever o perfil clínico da gestante com idade igual ou superior a 35 anos em um município de tríplice fronteira. Métodos: pesquisa quantitativa, do tipo retrospectiva e descritiva. Os dados são de prontuários de mulheres com idade igual ou maior que 35 anos que passaram por parto no período de 2012 a 2016. Para análise dos dados foi realizado o teste Qui-quadrado. Resultados: no período ocorreram 2.605 partos de gestações tardias, a maioria era brasileira e multípara e o parto cirúrgico o mais realizado. Quanto ao pré-natal, a maioria realizou. As intercorrências gestacionais mais encontradas foram a hipertensão arterial, diabetes mellitus e a pré-eclâmpsia. O parto cirúrgico teve maior incidência para prematuridade, baixo peso e como desfecho neonatal, a unidade de terapia neonatal. Conclusão: o perfil clínico das gestantes estudadas corrobora com outros resultados nacionais. Diante dos resultados evidenciados, destaca-se a importância dos profissionais de saúde conheçam os fatores de risco que as gestantes tardias estão expostas, para atuarem na prevenção de tais agravos. (AU)


Objective: To describe the clinical profile of pregnant women 35 years of age or older in a triple border city. Methods: Quantitative research, retrospective and descriptive. Data are from medical records of women aged 35 years or older who underwent labor from 2012 to 2016. For data analysis, the Chi-square test was performed. Results: There were 2,605 late pregnancies during the period, most were Brazilian and multiparous and the most performed surgical delivery. Most pregnant women had prenatal care. The most common gestational complications were hypertension, diabetes mellitus and preeclampsia. Surgical delivery had a higher incidence for prematurity, low weight and as a neonatal outcome, the neonatal therapy unit. Conclusion: The clinical profile of the pregnant women studied corroborates with other national results. Given the evidenced results, it is highlighted the importance of health professionals to know the risk factors to which late pregnant women are exposed to effectively act in the prevention of such diseases. (AU)


Objetivo: Describir el perfil clínico del gerente de 35 años o más en el municipio de frontera múltiple. Métodos: Investigación cuantitativa, retrospectiva y descriptiva. Los datos están listos para mujeres de 35 años o más y que alcanzan el período de 2012 a 2016. Para el análisis de los datos realizados o la prueba de Chi-cuadrado. Resultados: En el período en que ocurrieron 2,605 partes de contribuciones tardías, la mayoría fueron brasileñas y multíparas y el procedimiento quirúrgico o más realizado. En cuanto a la atención prenatal, la mayoría se realiza. Como las complicaciones gestacionales más comunes fueron hipertensión, diabetes mellitus y preeclampsia. El parto quirúrgico tuvo una mayor incidencia de prematuridad, bajo peso y, como resultado neonatal, una unidad de terapia neonatal. Conclusión: El perfil clínico de las embarazadas estudiadas se confirma con otros resultados nacionales. En vista de los resultados evidenciados, que muestran la importancia de los profesionales de la salud, los factores de riesgo que se retrasan están expuestos para actuar en la prevención de tales lesiones. (AU)


Subject(s)
Health Education , Maternal Age , Nursing , Health Promotion
16.
Rev. bras. ginecol. obstet ; 43(6): 436-441, June 2021. tab
Article in English | LILACS | ID: biblio-1341138

ABSTRACT

Abstract Objective The aim of the present study was to evaluate the risk factors for cesarean section (C-section) in low-risk multiparous women with a history of vaginal birth. Methods The present retrospective study included low-risk multiparous women with a history of vaginal birth who gave birth at between 37 and 42 gestational weeks. The subjects were divided into 2 groups according to the mode of delivery, as C-section Group and vaginal delivery Group. Risk factors for C-section such as demographic characteristics, ultrasonographic measurements, smoking, weight gain during pregnancy (WGDP), interval time between prior birth, history of macrosomic birth, and cervical dilatation at the admission to the hospital were obtained fromthe charts of the patients. Obstetric and neonatal outcomes were compared between groups. Results The most common C-section indications were fetal distress and macrosomia (33.9% [n=77 and 20.7% [n=47] respectively). A bivariate correlation analysis demonstrated that mothers aged>30 years old (odds ratio [OR]: 2.09; 95% confidence interval [CI]: 1.30-3.34; p=0.002), parity >1 (OR: 1.81; 95%CI: 1.18-2.71; p=0.006), fetal abdominal circumference (FAC) measurement>360mm (OR: 34.20; 95%CI: 8.04 -145.56; p<0.001)) and<345mm (OR: 3.06; 95%CI: 1.88-5; p<0.001), presence of large for gestational age (LGA) fetus (OR: 5.09; 95%CI: 1.35-19.21; p=0.016), premature rupture of membranes (PROM) (OR: 1.52; 95%CI: 1-2.33; p=0.041), and cervical dilatation<5cm at admission (OR: 2.12; 95%CI: 1.34-3.34; p=0.001) were associated with the group requiring a C-section. Conclusion This is the first study evaluating the risk factors for C-section in low-risk multiparous women with a history of vaginal birth according to the Robson classification 3 and 4. Fetal distress and suspected fetal macrosomia constituted most of the Csection indications.


Subject(s)
Humans , Female , Pregnancy , Adult , Parity , Cesarean Section/classification , Fetal Macrosomia/complications , Fetal Membranes, Premature Rupture , Labor Stage, First , Case-Control Studies , Retrospective Studies , Risk Factors , Maternal Age , Delivery, Obstetric , Fetal Distress/complications , Sagittal Abdominal Diameter
17.
Rev. bras. ginecol. obstet ; 43(6): 442-451, June 2021. tab, graf
Article in English | LILACS | ID: biblio-1341144

ABSTRACT

Abstract Objective To determine the adequacy of compliance with antenatal care (ANC) by pregnant women in Peru and to identify the associated factors. Methods An analytical cross-sectional study of data from the 2019 Peruvian Demographic and Family Health Survey (Encuesta Demográfica y de Salud Familiar, ENDES, in Spanish) was conducted. The dependent variable was adequate compliance with ANC (provided by skilled health care professionals; first ANC visit during the first trimester of pregnancy; six or more ANC visits during pregnancy; ANC visits with appropriate content) by women aged 15 to 49 years in their last delivery within the five years prior to the survey. Crude and adjusted prevalence ratios and their 95% confidence intervals were calculated using a log-binomial regression model. Results A total of 18,386 women were analyzed, 35.0% of whom adequately complied with ANC. The lowest proportion of compliance was found with the content of ANC (42.6%). Sociodemographic factors and those related to pregnancy, such as being in the age groups of 20 to 34 years and 35 to 49 years, havingsecondaryor higher education, belonging to a wealth quintile of the population other than the poorest, being from the Amazon region, not being of native ethnicity, having a second or third pregnancy, and having a desired pregnancy, increased the probability of presenting adequate compliance with ANC. Conclusion Only 3 out of 10women in Peru showed adequate compliancewith ANC. Compliance with the content of ANC must be improved, and strategies must be developed to increase the proportion of adequate compliance with ANC.


Resumo Objetivo Determinar a adequação do cumprimento dos cuidados pré-natais (CPN) por mulheres grávidas no Peru e identificar os fatores associados. Métodos Foi realizado um estudo analítico transversal dos dados da Pesquisa Demográfica e de Saúde da Família Peruana de 2019 (Encuesta Demográfica y de Salud Familiar, ENDES, em espanhol). A variável dependente foi conformidade adequada coma CPN (fornecida por profissionais de saúde qualificados; primeira visita CPN durante o primeiro trimestre de gravidez; seis ou mais visitas CPN durante a gravidez; visitas CPN com conteúdo apropriado) por mulheres de 15 a 49 anos em seu último parto nos cinco anos anteriores à pesquisa. Os índices de prevalência bruta e ajustada e seus intervalos de confiança de 95% foram calculados usando um modelo de regressão log-binomial. Resultados Foi analisado um total de 18.386 mulheres, das quais 35,0% cumpriram adequadamente o CPN. A menor proporção de conformidade foi encontrada com o conteúdo de ANC (42,6%). Fatores sociodemográficos e aqueles relacionados à gravidez, como estar na faixa etária de 20 a 34 anos e 35 a 49 anos, ter educação secundária ou superior, pertencer a um quintil de riqueza da população que não a mais pobre, ser da região da selva, não ser de etnia nativa, ter um segundo ou terceiro gravidez, e tendo uma gravidez desejada, aumentou a probabilidade de apresentar conformidade adequada com CPN. Conclusão Apenas 3 em cada 10 mulheres no Peru mostraram conformidade adequada com o CPN. O cumprimento do conteúdo do CPN deve ser melhorado, e estratégias devem ser desenvolvidas para aumentar a proporção de cumprimento adequado com o CPN.


Subject(s)
Humans , Female , Pregnancy , Adolescent , Adult , Young Adult , Prenatal Care/statistics & numerical data , Patient Acceptance of Health Care/statistics & numerical data , Patient Compliance/statistics & numerical data , Parity , Peru/epidemiology , Pregnancy Trimester, First , Residence Characteristics , Cross-Sectional Studies , Maternal Age , Health Care Surveys , Educational Status , Facilities and Services Utilization , Income , Middle Aged
18.
Rev. bras. ginecol. obstet ; 43(4): 256-263, Apr. 2021. tab
Article in English | LILACS | ID: biblio-1280039

ABSTRACT

Abstract Objective To investigate the association between prenatal care (PNC) adequacy indexes and the low birth weigth (LBW) outcome. Methods A total of 368,093 live term singleton births in the state of Rio de Janeiro (Brazil) from 2015 to 2016 were investigated using data from the Brazilian Live Birth Information System (Sistema de Informações sobre Nascidos Vivos, SINASC, in Portuguese). Seven PNC adequacy indexes were evaluated: four developed by Brazilian authors (Ciari Jr. et al., Coutinho et al., Takeda, and an index developed and used by the Brazilian Ministry of Health - MS) and three by authors from other countries (Kessner et al., the Adequacy of Prenatal Care Utilization index - APNCU, and the Graduated Prenatal Care Utilization Index - GINDEX). Adjusted odds ratios were estimated for the PNC adequacy indexes by means of multivariate logistic regression models using maternal, gestational and newborn characteristics as covariates. Results When the PNC is classified as "inadequate", the adjusted odds ratios to the LBWoutcome increase between 42% and 132%, depending on which adequacy index is evaluated. Younger (15 to 17 years old) and older (35 to 45 years old) mothers, those not married, of black or brown ethnicity, with low schooling (who did not finish Elementary School), primiparous, with preterm births, as well as female newborns had increasing odds for LBW. The models presented areas under the receiver operating characteristic (ROC) curve between 80.4% and 81.0%, and sensitivity and specificity that varied, respectively, between 57.7% and 58.6% and 94.3% and 94.5%. Conclusion Considering all PNC adequacy indexes evaluated, the APNCU had the best discriminatory power and the best ability to predict the LBW outcome.


Resumo Objetivo Investigar a associação entre diferentes índices de adequação do cuidado pré-natal (PN) e o desfecho de nascimentos com baixo peso (BP). Métodos Foram investigados 368.093 nascimentos ocorridos no estado do Rio de Janeiro entre 2015 e 2016, utilizando-se as informações do Sistema de Informações sobre Nascidos Vivos (Sinasc). Sete índices de adequação do cuidado PN foram avaliados: quatro propostos por autores nacionais (Ciari Jr et al., Coutinho et al., Takeda, e um índice atualmente em uso pelo Ministério da Saúde - MS), e três, por autores internacionais (Kessner et al., Adequacy of Prenatal Care Utilization index - APNCU, e Graduated Prenatal Care Utilization Index - GINDEX). As razões de chance ajustadas para BP foram estimadas considerando os índices de adequação do cuidado PN por meio de modelos de regressão logística, utilizando características maternas, da gravidez e do recém-nascido como variáveis de controle. Resultados As chances ajustadas para ocorrência de BP ao nascer aumentam de 42% a 132%, a depender do índice empregado, quando o cuidado PN é considerado inadequado. Mães entre 15 e 17 anos e entre 35 e 45 anos, sem companheiro, de cor parda ou preta, com ensino fundamental incompleto, e primíparas, com gestações pré-termo, além de bebês do sexo feminino são fatores de risco para os nascimentos com BP. Conclusão Entre os índices avaliados, o APNCU foi o que apresentou melhor poder discriminatório e capacidade de prever o desfecho de BP ao nascer.


Subject(s)
Humans , Female , Pregnancy , Infant, Newborn , Adolescent , Adult , Young Adult , Prenatal Care/standards , Infant, Low Birth Weight , Parity , Brazil , Single Parent , Regression Analysis , Maternal Age , Marital Status , Educational Status , Race Factors , Middle Aged
19.
Rev. bras. ginecol. obstet ; 43(4): 264-274, Apr. 2021. tab, graf
Article in English | LILACS | ID: biblio-1280040

ABSTRACT

Abstract Pretermbirth (PTB) is a major obstetric problem associated with high rates of neonatal morbidity and mortality. The prevalence of PTB has not changed in the last decade; thus, the establishment of a screening test and effective treatment are warranted. Transvaginal ultrasoundmeasurement of the cervical length (TUCL) has been proposed as an effective method to screen pregnant women at a higher risk of experiencing PTB. Objective To evaluate the applicability and usefulness of second-trimester TUCL to predict PTB in a cohort of Portuguese pregnant women. Methods Retrospective cross-sectional cohort study including all singleton pregnant women who performed their second-trimester ultrasound (between weeks 18 and 22þ6 days) from January 2013 to October 2017 at Centro Hospitalar Universitário São João. Results Our cohort included 4,481 women. The prevalence of spontaneous PTB was of 4.0%, with 0.7% occurring before the 34th week of gestation. The mean TUCL was of 33.8mm,and percentiles 3, 5 and 10 corresponded toTUCLs of 25.0mm, 27.0mmand 29.0mmrespectively. The multiple logistic regression analysis, including maternal age, previous PTB and cervical surgery showed a significant negative association between TUCL and PTB, with an odds ratio (OR) of 0.92 (95% confidence interval [95%CI]: 0.90-0.95; p<0.001). The use of a TUCL of 20mm is the best cut-off, when compared with the 25-mm cut-off, improving the prediction of risk. Conclusion The present study showed an inverse association between TUCL and PTB, and that the inclusion of other risk factors like maternal age, previous PTB and cervical surgery can improve the screening algorithm. Furthermore, it emphasizes that the TUCL cut-off that defines short cervix can differ according to the population.


Resumo O parto pré-termo (PPT) é uma grande complicação obstétrica que se associa a elevadas taxas de morbimortalidade neonatal. A sua prevalência não tem alterado na última década, sendo esencial determinar uma forma de rastreio e tratamento eficaz. A medição ecográfica transvaginal do comprimento cervical tem sido proposta como um método eficaz de rastreio das grávidas com risco aumentado de PPT. Objetivo Avaliar a aplicabilidade e utilidade da medição ecográfica transvaginal do comprimento cervical na previsão de PPT numa amostra de grávidas portuguesas. Método Estudo de coorte retrospectivo incluindo todas as grávidas com gestação unifetal que realizaram ecografia do 2° trimestre (de 18 a 22semanasþ6 dias) no Centro Hospitalar Universitário de São João entre janeiro de 2013 e outubro de 2017. Resultados A nossa amostra incluiu 4.481 mulheres. A prevalência de PPT espontâneo foi de 4,0%, sendo que 0,7% ocorreu antes das 34 semanas de gestação. A média do comprimento cervical por ecografia transvaginal foi 33,8mm, e os percentis 3, 5 e 10 da amostra corresponderam a comprimentos cervicais de 25,0mm, 27,0mm e 29,0mm, respetivamente. A regressão logística múltipla, que incluiu a idade materna, PPT anterior e antecedentes de conização, demonstrou uma associação estatisticamente significativa entre o comprimento cervical e o risco de PPT, com um risco relativo de 0,92 (intervalo de confiança de 95% [IC95%]: 0.90-0.95; p<0.001). A utilização de um valor de referência de comprimento cervical de 20mm, quando comparado com o valor de referência de 25 mm, melhora a previsão do risco de PPT. Conclusão Este estudo demostra uma associação entre o comprimento cervical avaliado por ecografia tranasvaginal e o risco de PPT, e salienta que a inclusão de outros fatores de risco, como idade materna, PPT anterior e antecedentes de conização podem melhorar o algoritmo de rastreio. Realça ainda que o valor de comprimento cervical utilizado para definir "colo curto" varia de acordo com a população em estudo.


Subject(s)
Humans , Female , Pregnancy , Adult , Cervix Uteri/diagnostic imaging , Premature Birth , Cervical Length Measurement , Portugal , Pregnancy Trimester, Second , Cross-Sectional Studies , Retrospective Studies , Risk Factors , Maternal Age , Tertiary Care Centers
20.
Rev. Méd. Clín. Condes ; 32(2): 146-160, mar.-abr. 2021. tab, graf
Article in Spanish | LILACS | ID: biblio-1518224

ABSTRACT

En el presente artículo se analizan los efectos de la postergación de la maternidad en tres ámbitos: i) demográfico, ii) clínico y iii) biológico. Desde luego, la literatura demográfica existente procede fundamentalmente de países con un buen grado de desarrollo, pero se ha realizado un esfuerzo por reunir la mayor cantidad de datos de países en desarrollo. Así se analiza la situación en Europa, EE.UU. y Latinoamérica para finalizar esta sección con la realidad específica en Chile. Desde el punto de vista clínico, se pone especial interés en los cambios que experimenta la probabilidad de embarazo por ciclo (definida como fecundabilidad) y la fertilidad en general. En los aspectos perinatológicos se enfatiza el incremento de frecuencia de la muerte fetal in útero temprana (aborto espontáneo) y tardía con especial mención de algunas patologías (frecuencia del síndrome de Down y otros). Se establece además la frecuencia significativamente mayor de bajo y muy bajo peso de nacimiento, necesidad de hospitalización del recién nacido (morbilidad perinatal) así como el efecto sobre la mortalidad neonatal.Biológicamente la postergación de la maternidad tiene su correlato en la pérdida de reserva ovárica y la disminución de la calidad ovocitaria que involucra un aumento en la incidencia de fallas de fecundación y embriones con bajo potencial de desarrollo y aneuploidías dependientes fundamentalmente de la edad materna. También se hace mención a algunos aspectos del envejecimiento uterino y sus consecuencias en el desarrollo y función placentaria. El enfoque se centra fundamentalmente en la mujer, pero incluye aspectos de la contribución masculina a esta temática.


This article analyzes the effects of the postponement of maternity in three areas: i) demographic, ii) clinical and perinatological and iii) biological. Of course, the existing demographic literature comes primarily from well-developed countries, but an effort has been made to collect as much data from developing countries. The situation in Europe, the U.S. and Latin America is analyzed to end this section with the specific reality in Chile. From the clinical point of view, special interest is placed on changes in the probability of pregnancy by cycle (defined as fecundability) and fertility in general. In the perinatological aspects, the increased frequency of early fetal death (spontaneous abortion) and stillbirth is emphasized, with special mention of some pathologies (frequency of Down syndrome and others). It is also stressed the significant higher frequency of low and very low birth weight, the need newborn hospitalization (perinatal morbidity), as well as the effects on neonatal mortality. Biologically, the postponement of maternity has its correlation in the loss of ovarian reserve and the decrease in oocyte quality that involves an increased incidence of fertilization failure and embryos with low potential for development and aneuploidies, mainly dependent on maternal age. Some aspects of uterine aging and its consequences on placental development and function are also mentioned. The discussion is mainly focused on women, but includes some aspects of the male contribution to this issue


Subject(s)
Humans , Female , Maternal Age , Decision Making , Reproductive Behavior , Pregnancy Outcome , Fertility , Sociodemographic Factors
SELECTION OF CITATIONS
SEARCH DETAIL