Influence of pacifier use on the association between duration of breastfeeding and anterior open bite in primary dentition.

BACKGROUND: The literature is controversial with regard to the association between longer breastfeeding duration and lower prevalence of anterior open bite. Pacifier use may be involved in this controversy. Thus, the objective of the study was to assess the influence of pacifier use and its duration on the association between longer breastfeeding duration and lower prevalence of anterior open bite in children with primary dentition. METHODS: This was a cross-sectional study nested in a cohort study involving 153 infants recruited at a maternity hospital in the municipality of Porto Alegre, southern Brazil. The study outcome (anterior open bite) was assessed when the children were between 3 and 5 years old. Data on breastfeeding and pacifier use were collected at 7, 30, 60, 120, and 180 days of life and on the date of the evaluation here described. Poisson regression with robust variance was used to analyze the association between the prevalence of anterior open bite and breastfeeding duration, expressed in months. RESULTS: The univariate analysis showed a protective effect of breastfeeding against anterior open bite (prevalence ratio [PR] 0.96; 95% confidence interval [95%CI] 0.95-0.98). This effect remained significant after adjustment for pacifier use at any time between birth and the date of dental assessment (PR0.98; 95%CI; 0.96-0.99), i.e., there was a reduction of 2% in the prevalence of anterior open bite for each month of breastfeeding. However, this effect lost significance when pacifier use duration was included in the multivariate analysis (PR1.00; 95%CI; 0.99-1.01). CONCLUSIONS: Pacifier use duration influences the association between longer breastfeeding duration and lower prevalence of anterior open bite. It is likely that prolonged pacifier use reduces the magnitude of this association.

Breastfeeding in the First Hours of Life Protects Against Pacifier Use: A Birth Cohort Study.

Objective: To investigate risk factors for pacifier use in the first year of life. Materials and Methods: A prospective cohort study was conducted with children enrolled at birth in Porto Alegre, Southern Brazil, whose mothers underwent prenatal care at primary care units. Soon after the birth of the children, data were collected on anthropometrics, type of childbirth, and time until breastfeeding on the first day of life. At 6 and 12 months of age, data were collected on breastfeeding practices and whether the child had used a pacifier in the previous 6 months. Statistical analysis involved the use of Poisson regression with robust variance. Results: The incidence of pacifier use in the first year of life was 60% (317/532). The multivariable analysis showed that pacifier use in the first year of life was 33% higher when the mother was younger than 18 years of age (relative risk [RR] = 1.33; confidence interval [95% CI]: 1.01-1.76). Infants who breastfed in the first 30 minutes after birth had a 25% lower risk of pacifier use in the first year of life (RR = 0.75; 95% CI: 0.60-0.94), and those who breastfed between 30 minutes and 6 hours after birth had an 18% lower risk (RR = 0.82; 95% CI: 0.69-0.97) compared to those who took longer to begin breastfeeding or did not breastfeed. Conclusions for Practice: Breastfeeding soon after being born protected against pacifier use in the first year of life. This finding suggests pathways to improve child health, especially in the prenatal period and with an emphasis on pregnant adolescents.

Prevalence and determinants of the use of pacifiers and feedingbottle: a study in Southwest Bahia / Prevalência e fatores determinantes do uso de chupetas e mamadeiras: um estudo no sudoeste baiano

Abstract Objectives: to assess the use of pacifier and feedingbottle and their determinants in children from a municipality of Southwest Bahia. Methods: a cross-sectional study was performed with 354 children younger than 12 months old. The event was categorized in: exclusive use of pacifier, exclusive use of feeding bottle,use of pacifier and feeding bottle, and not use any of them. Multinomial analysis with logistic regression was applied, and those who did not use any artificial nipples were thereference variable. Results: it was observed that 11.9% of the children exclusively used pacifiers, 21.2% only use bottles and 32.8% used both of them. The following factors were associated with the exclusive use of pacifiers: low maternal schooling level (eight or less years of education), lack of previous experience with breastfeeding, difficulty in postpartum breastfeeding, and lack of incentive to breastfeeding in puericulture. The exclusive use of feeding bottle was associated with unmarried mothers, aged 35 years old or older, and with less years of education (eight or less years). Women who worked outside home and had difficulty in breastfeeding had greater chance of giving both artificial nipples to the children. Conclusions: the findingspresent different featuresrelated to the exclusive or combined use of pacifiers and feeding bottles, being important to direct health professionals conducts towards mothers' orientation.

Resumo Objetivos: avaliar o uso de chupeta e mamadeira e seus determinantes em crianças de um município da região Sudoeste da Bahia. Métodos: estudo transversal realizado com 354 crianças menores de 12 meses. O evento foi categorizado em uso de chupeta exclusivo, uso de mamadeira exclusiva, uso de chupeta e mamadeira e não faz uso de ambas. Empregou-se análise multinomial com regressão logística tendo os que não usavam bicos artificiais como variável de referência. Resultados: observou-se que 11,9% das crianças faziam uso exclusivo de chupeta, 21,2% de mamadeira, 32,8% de ambos. Estiveram associadas ao uso exclusivo de chupeta: uma menor escolaridade materna (oito ou menos anos de estudo), ausência de experiência anterior com amamentação, dificuldade de amamentar no pós-parto e falta de incentivo à amamentação na puericultura. O uso exclusivo de mamadeira foi associado a mães sem companheiro, com idade de 35 anos ou mais e com menor escolaridade (oito ou menos anos de estudo). Mulheres que trabalhavam fora do lar e que tiveram dificuldade de amamentar apresentaram maior chance de fazerem uso de ambos os bicos artificiais. Conclusões: os resultados mostram características diferentes em relação ao uso exclusivo ou conjunto de bicos e mamadeiras, sendo importantes para direcionar as condutas dos profissionais de saúde para as orientações as mães.

Involvement of maternal grandmother and teenage mother in intervention to reduce pacifier use: a randomized clinical trial / Participação da avó materna e mãe adolescente na intervenção para redução do uso de chupeta: um ensaio clínico randomizado

Abstract Objective: To assess the impact of an intervention for teenage mothers with the involvement of maternal grandmothers on the prevalence of pacifier use in the first six months of life. Methods: This randomized clinical trial involved 323 teenage mothers, allocated to four groups: intervention with teenagers only, intervention with teenagers and their mothers, and respective controls. Six breastfeeding counseling sessions, including the recommendation to avoid the use of a pacifier, were delivered at the maternity ward and subsequently at the teenagers' homes, at seven, 15, 30, 60, and 120 days postpartum. Data on infant feeding and pacifier use were collected monthly by interviewers blinded to group allocation. The impact of the intervention was measured by comparing survival curves for pacifier use in the first six months of life and mean time to pacifier introduction. Results: The intervention had a significant impact on reducing pacifier use only in the group in which grandmothers were involved. In this group, the intervention delayed by 64 days the introduction of a pacifier (21-85 days), compared to 25 days in the group without the participation of grandmothers (65-90 days). Conclusions: The intervention reduced pacifier use in the first six months of life and delayed its introduction until beyond the first month when grandmothers were involved. The intervention did not have a significant impact when only teenage mothers were involved.

Resumo Objetivo: Avaliar o impacto de uma intervenção para mães adolescentes com a participação de avós maternas na prevalência de uso de chupeta nos primeiros seis meses de vida. Métodos: Este ensaio clínico randomizado envolveu 323 mães adolescentes, alocadas para quatro grupos: intervenção com somente adolescentes, intervenção com adolescentes e suas mães e respectivos controles. Seis sessões de aconselhamento para amamentação, incluindo a recomendação de evitar o uso de chupeta, foram realizadas na maternidade e posteriormente nas casas das adolescentes ao 7°, 15°, 30°, 60° e 120° dias. Os dados sobre alimentação infantil e uso de chupeta foram coletados mensalmente por entrevistadores cegos a respeito da alocação dos grupos. O impacto da intervenção foi medido comparando as curvas de sobrevida para uso de chupeta nos primeiros 6 meses de vida e o tempo médio de introdução de chupetas. Resultados: A intervenção apresentou um impacto significativo sobre a redução do uso de chupeta somente no grupo em que as mães estiveram envolvidas. Nesse grupo, a intervenção mostrou atraso de 64 dias na introdução de chupeta (21 a 85 dias), em comparação a 25 dias no grupo sem a participação das avós (65 a 90 dias). Conclusões: A intervenção reduziu o uso de chupeta nos primeiros 6 meses de vida e atrasou sua introdução além do primeiro mês com a participação das avós. A intervenção não teve impacto significativo somente com o envolvimento das mães adolescentes.

[Breastfeeding assessment in children up to 2 years of age assisted in primary health care of Recife in the state of Pernambuco, Brazil]. / Avaliação do aleitamento materno em crianças até dois anos assistidas na atenção básica do Recife, Pernambuco, Brasil.

The scope of this study was to evaluate exclusive and total breastfeeding in children up to 2 years of age treated in Basic Health Units (BHU) of Recife in the state of Pernambuco. A cross-sectional descriptive study was conducted in the Basic Health Units of Mustardinha, Jardim Uchôa, Fernandes Figueira and Upinha Novo Prado. The study population consisted of children of 0 to 24 months of age. One hundred and forty-one children from 0 to 24 months of age were evaluated, of which 56.4% were female, 22% were ≤ 6 months old, 21.3% were between 7 and 12 months of age and 56.7% were between 13 and 24 months of age. Analysis of the prevalence of exclusive and total breastfeeding revealed an average of 60.84 and 182.52 days, respectively. Male children, the use of pacifiers and bottle-feeding was associated with shorter exclusive breastfeeding duration.

O presente estudo teve por objetivo avaliar o aleitamento materno exclusivo (AME) e total em crianças até 2 anos de idade atendidas em Unidades Básicas de Saúde (UBS) do Recife-PE. Estudo descritivo transversal, realizado nas Unidades Básicas de Saúde da Mustardinha, Jardim Uchôa, Fernandes Figueira e Upinha Novo Prado. A população foi composta por crianças de 0 a 24 meses de idade. Foram avaliadas 141 crianças, das quais 54,6% eram do sexo feminino, 22% tinham idade ≤ 6 meses, 21,3% entre 7 a 12 meses e 56,7% entre 13 e 24 meses. Ao analisar a prevalência de aleitamento materno exclusivo e total, verificou-se a mediana de 60,84 e 182,52 dias, respectivamente. Crianças do sexo masculino, uso de chupeta e mamadeira foram associados ao menor tempo de aleitamento materno exclusivo.

Avaliação do aleitamento materno em crianças até dois anos assistidas na atenção básica do Recife, Pernambuco, Brasil / Breastfeeding assessment in children up to 2 years of age assisted in primary health care of Recife in the state of Pernambuco, Brazil

Resumo O presente estudo teve por objetivo avaliar o aleitamento materno exclusivo (AME) e total em crianças até 2 anos de idade atendidas em Unidades Básicas de Saúde (UBS) do Recife-PE. Estudo descritivo transversal, realizado nas Unidades Básicas de Saúde da Mustardinha, Jardim Uchôa, Fernandes Figueira e Upinha Novo Prado. A população foi composta por crianças de 0 a 24 meses de idade. Foram avaliadas 141 crianças, das quais 54,6% eram do sexo feminino, 22% tinham idade ≤ 6 meses, 21,3% entre 7 a 12 meses e 56,7% entre 13 e 24 meses. Ao analisar a prevalência de aleitamento materno exclusivo e total, verificou-se a mediana de 60,84 e 182,52 dias, respectivamente. Crianças do sexo masculino, uso de chupeta e mamadeira foram associados ao menor tempo de aleitamento materno exclusivo.

Abstract The scope of this study was to evaluate exclusive and total breastfeeding in children up to 2 years of age treated in Basic Health Units (BHU) of Recife in the state of Pernambuco. A cross-sectional descriptive study was conducted in the Basic Health Units of Mustardinha, Jardim Uchôa, Fernandes Figueira and Upinha Novo Prado. The study population consisted of children of 0 to 24 months of age. One hundred and forty-one children from 0 to 24 months of age were evaluated, of which 56.4% were female, 22% were ≤ 6 months old, 21.3% were between 7 and 12 months of age and 56.7% were between 13 and 24 months of age. Analysis of the prevalence of exclusive and total breastfeeding revealed an average of 60.84 and 182.52 days, respectively. Male children, the use of pacifiers and bottle-feeding was associated with shorter exclusive breastfeeding duration.

Pairs seen by lactation consultants and cessation of exclusive breastfeeding in the first month.

OBJECTIVE: To analyze the survival of exclusive breastfeeding and the factors associated with its cessation in the first month among pairs seen by a lactation consulting team. METHOD: This is a prospective cohort conducted with mother-infant pairs treated at the Hospital de Clínicas of Porto Alegre. RESULTS: The sample consisted of 150 pairs. The survival curve indicates that 52.9% of the children remained on exclusive breastfeeding. The hierarchical model was constructed in four levels, and the factors associated with the cessation of exclusive breastfeeding were the milk supplementation during hospitalization, breast problems after hospital discharge and use of pacifiers. CONCLUSION: Awareness of these factors favors the early detection of pairs that may be predisposed to cessation of exclusive breastfeeding, who require greater support, dedication and care.

Involvement of maternal grandmother and teenage mother in intervention to reduce pacifier use: a randomized clinical trial.

OBJECTIVE: To assess the impact of an intervention for teenage mothers with the involvement of maternal grandmothers on the prevalence of pacifier use in the first six months of life. METHODS: This randomized clinical trial involved 323 teenage mothers, allocated to four groups: intervention with teenagers only, intervention with teenagers and their mothers, and respective controls. Six breastfeeding counseling sessions, including the recommendation to avoid the use of a pacifier, were delivered at the maternity ward and subsequently at the teenagers' homes, at seven, 15, 30, 60, and 120 days postpartum. Data on infant feeding and pacifier use were collected monthly by interviewers blinded to group allocation. The impact of the intervention was measured by comparing survival curves for pacifier use in the first six months of life and mean time to pacifier introduction. RESULTS: The intervention had a significant impact on reducing pacifier use only in the group in which grandmothers were involved. In this group, the intervention delayed by 64 days the introduction of a pacifier (21-85 days), compared to 25 days in the group without the participation of grandmothers (65-90 days). CONCLUSIONS: The intervention reduced pacifier use in the first six months of life and delayed its introduction until beyond the first month when grandmothers were involved. The intervention did not have a significant impact when only teenage mothers were involved.

Exclusive breastfeeding changes in Brazil attributable to pacifier use.

BACKGROUND: Identifying key interventions to increase exclusive breastfeeding duration has been a challenge. Pacifier use has been associated with exclusive breastfeeding discontinuation in Brazil. However, the proportion of the improvement in exclusive breastfeeding duration attributable to pacifier use remains unknown. RESEARCH AIM: Quantify the proportion of increases in exclusive breastfeeding prevalence that can be attributed to reduced pacifier use over time. METHODS: Secondary data analyses of two nationally representative cross-sectional surveys conducted in States' capitals in 1999 and in 2008 (N = 42,395 Brazilian infants under 6 months of age). We estimated the fraction of exclusive breastfeeding prevalence improvements that could be attributed to pacifier use based on multilevel regression analysis. RESULTS: From 1999 to 2008, there was an increase of 15.2 percentage points in exclusive breastfeeding prevalence and a decrease of approximately 17 percentage points in the prevalence of pacifier use among infants under 6 months. Reduction in pacifier use explained an increase in 5.5 percentage points' exclusive breastfeeding rates. If pacifier use were to decrease from 41.6% (prevalence in 2008) to 14% (as found in New Zealand), there would be an expected additional increase in exclusive breastfeeding of approximately 12 percentage points. CONCLUSIONS: About one-third of the improvements in EBF prevalence observed in Brazil over a decade can be attributed to the corresponding decline in pacifier use.

Association between pacifier use and bottle-feeding and unfavorable behaviors during breastfeeding / Associação entre uso de chupeta e mamadeira e comportamentos desfavoráveis à amamentação durante as mamadas

Abstract Objective: To investigate the association between pacifier use and bottle-feeding and unfavorable behaviors during breastfeeding. Method: A cross-sectional study was conducted with 427 babies/mothers. Socio-demographic, perinatal data, and information about the use of artificial nipples (pacifier and/or bottle) were collected through a questionnaire. The breastfeeding aspects regarding position, affectivity, sucking behavior, baby responses, and breast anatomy were evaluated through observation during breastfeeding. The chi-squared test and the multiple linear regression analysis were used to investigate the association between the variables. Results: The aspects of breastfeeding that showed higher percentages of the category "poor" were sucking behavior (22.5%) and position (22.2%). The group of infants who used pacifiers and/or bottle showed higher percentages in the poor and fair categories when compared with the good category for all five breastfeeding aspects evaluated (p < 0.001). The linear regression analysis revealed that the increase in the number of unfavorable behaviors regarding position, affectivity, sucking behavior, and baby responses were independently associated with both pacifier and bottle use (β positive, p < 0.05), while breast anatomy was independently associated only with bottle use. Conclusion: The findings suggest that the use of pacifiers and/or bottle-feeding may be associated with unfavorable behaviors during breastfeeding, especially the use of bottle-feeding.

Resumo Objetivo: Investigar a associação entre uso de chupeta e mamadeira e comportamentos desfavoráveis à amamentação durante as mamadas. Métodos: Um estudo transversal foi conduzido com 427 bebês/mães. Foram coletados dados sociodemográficos, perinatais e sobre o uso de bicos artificiais (chupeta e/ou mamadeira) através de questionário. Os aspectos de amamentação referentes à posição, afetividade, adequação da sucção, respostas do bebê e anatomia das mamas foram avaliados através da observação durante a mamada. O teste qui-quadrado e a análise de regressão linear múltipla foram usados para investigar associação entre as variáveis. Resultados: Os aspectos de amamentação que apresentaram percentuais mais elevados da categoria ruim foram a adequação da sucção (22,5%) e posição (22,2%). O grupo de bebês que usavam chupeta e/ou mamadeira apresentou percentuais mais elevados nas categorias ruim e regular quando comparados com a categoria bom para todos os cinco aspectos da amamentação avaliados (p < 0,001). A análise de regressão linear revelou que o incremento do número de comportamentos desfavoráveis referentes à posição, afetividade, adequação da sucção e respostas do bebê estavam associados de forma independente tanto ao uso de chupeta quanto ao uso de mamadeira (β positivo, p < 0,05), enquanto que anatomia das mamas estava associado de forma independente apenas com o uso de mamadeira. Conclusão: Os achados sugerem que o uso de chupeta e/ou mamadeira pode estar associado a comportamentos desfavoráveis durante amamentação, em especial o uso de mamadeira.

Uso de chupeta em pré-escolares do sul do Brasil: prevalência e fatores associados / Pacifier use in preschoolers from southern Brazil: prevalence and associated factors

Objetivo: investigar a prevalência e os fatores associados ao uso de chupeta em pré-escolares. Sujeitos e método: estudo transversal foi realizado com 1.316 crianças de 0 até 5 anos de idade no município de Canoas, no Rio Grande do Sul. O instrumento de pesquisa foi um questionário semiestruturado respondido pelos responsáveis sobre características sociodemográficas (sexo, cor da pele, idade da criança e materna, escolaridade materna, estrutura e renda familiar) e comportamentais (uso da mamadeira e aleitamento materno). O desfecho foi presença/ausência de uso de chupeta. A análise estatística compreendeu regressão de Poisson com variância robusta bruta e ajustada. Resultados: a prevalência de uso de chupeta em algum momento da vida foi de 68,1%. A análise multivariável ajustada mostrou que crianças que usaram mamadeira tiveram três vezes maior prevalência do desfecho (RP: 3,21; IC95% 2,25-4,59; p<0,001) se comparadas àquelas que nunca usaram mamadeira. Além disso, a análise adicional encontrou que crianças mais novas ainda usam a chupeta quando comparadas às mais velhas. Conclusão: conclui-se que a prevalência do uso de chupeta é alta e está associada com hábitos de nutrição. Assim, entender a associação de aspectos biopsicossociais e sua rede de causalidade torna-se essencial para o estabelecimento de estratégias de promoção de saúde na primeira infância. (AU)

Objective: to investigate the prevalence and the factors associated with pacifier use by preschoolers. Subjects and method: cross-sectional study performed with 1316 children from zero to five years of age, in the city of Canoas, RS, Brazil. The research instrument was a semi- -structured questionnaire answered by the responsible persons on sociodemographic (sex, skin color, child and maternal age, maternal level of education, and family structure and income) and behavioral (bottle-feeding and breastfeeding) characteristics. The outcome was the presence/absence of pacifier use. The statistical analysis included Poisson regression with crude and adjusted robust variance. Results: the prevalence of pacifier use at some point in life was 68.1%. The adjusted multivariate analysis showed that bottle-fed children presented a threefold higher prevalence of the outcome (PR: 3.21, 95%CI 2.25-4.59, p<0.001) compared to those who had never used the bottle. Moreover, an additional analysis found that younger children still use the pacifier compared to older ones. Conclusion: it is concluded that the prevalence of pacifier use is high and it is associated with nutrition habits. Thus, understanding the association of biopsychosocial aspects and their causality network becomes essential for establishing health promotion strategies in early childhood. (AU)

Factors associated with the maintenance of breastfeeding for 6, 12, and 24 months in adolescent mothers.

BACKGROUND: Previous studies have demonstrated that adolescent mothers present a higher risk of not breastfeeding or of early interruption of this practice. Considering the scarcity of studies investigating the determining factors of breastfeeding in adolescent mothers, and the absence of studies exploring the determining factors of breastfeeding maintenance for different periods of time in a single population of adolescent mothers, the aim of this research was to identify factors associated with breastfeeding maintenance for at least 6, 12, and 24 months in adolescent mothers. METHODS: Data analysis from a randomised control trial involving adolescent mothers recruited at a university hospital in southern Brazil. Participants were followed through the first year of life of their infants and reassessed at 4-7 years. Factors associated with any breastfeeding for at least 6, 12, and 24 months were assessed using multivariate Poisson regression. RESULTS: Data for 228, 237, and 207 mothers were available, respectively. Breastfeeding maintenance for at least 6, 12, and 24 months was observed in 68.4, 47.3, and 31.9% of the sample, respectively. Only one factor was associated with breastfeeding maintenance at all outcomes: infant not using a pacifier showed a higher probability of breastfeeding maintenance in the first 2 years. Maternal grandmother breastfeeding support and exclusive breastfeeding duration were associated with breastfeeding maintenance for 6 and 12 months. The other factors evaluated were associated with breastfeeding maintenance at only one of the time points assessed: 6 months, maternal skin color (black/brown); 12 months, female infant and partner breastfeeding support; and 24 months, older paternal age and multiparity. CONCLUSIONS: The present findings shed light upon barriers and facilitators of breastfeeding practices among adolescent mothers. In order to contribute to the challenge of increasing BF duration among adolescent mothers interventions aimed at boosting breastfeeding maintenance among this population should take into consideration the determining factors here identified. Additionally, breastfeeding education and support should be provided continuously as factors influencing these practices vary with time. Thus, support for adolescent mothers during the different stages of breastfeeding need to be tailored to have a positive impact on breastfeeding experience.

[Guidance on breastfeeding in primary health care and the association with exclusive breastfeeding]. / Orientações sobre amamentação na atenção básica de saúde e associação com o aleitamento materno exclusivo.

This article aims to analyze the association between guidance on breastfeeding in primary health care and exclusive breastfeeding. It involved a cross-sectional study conducted in 2013 in the city of Rio de Janeiro, Brazil, by means of interviews with 429 mothers of infants below six months of age in primary care units. We estimated adjusted prevalence ratios by Poisson regression. In the final model, the variables associated with the outcome (p ≤ 0.05) were retained. The prevalence of exclusive breastfeeding was 50.1%. In multivariate analysis, guidance on exclusive breastfeeding in primary care was directly associated with the outcome (PR = 1.32). Maternal income < 1 minimum wage (PR = 0.77), previous breastfeeding experience for less than 6 months (PR = 0.73), not living with a partner (PR = 0.76), non-exclusive breastfeeding at discharge (PR = 0.78), alcohol consumption (OR = 0.57), guidance on pumping breast milk (PR = 0.53), pacifier use (PR = 0, 74) and baby's age in months (PR = 0.78) were associated inversely with the outcome. Guidance on exclusive breastfeeding favored it, while inadequate guidance and practices were associated with a lower prevalence of the outcome.

Orientações sobre amamentação na atenção básica de saúde e associação com o aleitamento materno exclusivo / Guidance on breastfeeding in primary health care and the association with exclusive breastfeeding

Resumo O objetivo deste artigo é analisar a associação entre o recebimento de orientações sobre amamentação na atenção básica à saúde e o aleitamento materno exclusivo. Estudo transversal conduzido em 2013, mediante entrevista a 429 mães de crianças menores de seis meses, em unidades básicas da cidade do Rio de Janeiro. Razões de prevalência ajustadas do desfecho foram obtidas por regressão de Poisson, sendo mantidas no modelo final as variáveis associadas ao desfecho (p ≤ 0,05). A prevalência de aleitamento materno exclusivo foi de 50,1%. Na análise múltipla, a mãe receber orientação sobre aleitamento materno exclusivo na unidade básica se associou positivamente ao desfecho (RP =1,32). Associaram-se negativamente ao desfecho: renda materna < 1 salário mínimo (RP = 0,77), experiência prévia em amamentar por menos de 6 meses (RP = 0,73), não viver com companheiro (RP = 0,76), não amamentação exclusiva na alta hospitalar (RP = 0,78), consumo de bebida alcoólica (RP = 0,57), receber orientação sobre uso de bombas para ordenha das mamas (RP = 0,53), uso de chupeta (RP = 0,74) e idade crescente do bebê em meses (RP = 0,78). Ter recebido orientação sobre o aleitamento materno exclusivo contribuiu para o mesmo, enquanto orientações e práticas inadequadas se associaram a uma menor prevalência do desfecho.

Abstract This article aims to analyze the association between guidance on breastfeeding in primary health care and exclusive breastfeeding. It involved a cross-sectional study conducted in 2013 in the city of Rio de Janeiro, Brazil, by means of interviews with 429 mothers of infants below six months of age in primary care units. We estimated adjusted prevalence ratios by Poisson regression. In the final model, the variables associated with the outcome (p ≤ 0.05) were retained. The prevalence of exclusive breastfeeding was 50.1%. In multivariate analysis, guidance on exclusive breastfeeding in primary care was directly associated with the outcome (PR = 1.32). Maternal income < 1 minimum wage (PR = 0.77), previous breastfeeding experience for less than 6 months (PR = 0.73), not living with a partner (PR = 0.76), non-exclusive breastfeeding at discharge (PR = 0.78), alcohol consumption (OR = 0.57), guidance on pumping breast milk (PR = 0.53), pacifier use (PR = 0, 74) and baby's age in months (PR = 0.78) were associated inversely with the outcome. Guidance on exclusive breastfeeding favored it, while inadequate guidance and practices were associated with a lower prevalence of the outcome.

Association between pacifier use and bottle-feeding and unfavorable behaviors during breastfeeding.

OBJECTIVE: To investigate the association between pacifier use and bottle-feeding and unfavorable behaviors during breastfeeding. METHOD: A cross-sectional study was conducted with 427 babies/mothers. Socio-demographic, perinatal data, and information about the use of artificial nipples (pacifier and/or bottle) were collected through a questionnaire. The breastfeeding aspects regarding position, affectivity, sucking behavior, baby responses, and breast anatomy were evaluated through observation during breastfeeding. The chi-squared test and the multiple linear regression analysis were used to investigate the association between the variables. RESULTS: The aspects of breastfeeding that showed higher percentages of the category "poor" were sucking behavior (22.5%) and position (22.2%). The group of infants who used pacifiers and/or bottle showed higher percentages in the poor and fair categories when compared with the good category for all five breastfeeding aspects evaluated (p<0.001). The linear regression analysis revealed that the increase in the number of unfavorable behaviors regarding position, affectivity, sucking behavior, and baby responses were independently associated with both pacifier and bottle use (ß positive, p<0.05), while breast anatomy was independently associated only with bottle use. CONCLUSION: The findings suggest that the use of pacifiers and/or bottle-feeding may be associated with unfavorable behaviors during breastfeeding, especially the use of bottle-feeding.

Pacifier Use and Early Life Weight Outcomes in the Intervention Nurses Start Infants Growing on Healthy Trajectories Study.

BACKGROUND: Although widely used by infants, little is known about the long-term effects of pacifiers. We investigated relationships between pacifier use in infancy and appetite, temperament, feeding, and weight outcomes through age 2 years using data from the Intervention Nurses Start Infants Growing on Healthy Trajectories study. METHODS: Mother-newborn dyads were randomized to a responsive parenting intervention for obesity prevention or a control group. Infants with data on pacifier use (n = 250) were categorized as using a pacifier beyond early infancy (≥4 months of age) or not. Anthropometrics were measured at 6 months, 1, and 2 years with overweight defined as weight-for-length ≥95th percentile at 1 year and BMI ≥85th percentile at 2 years. Mothers completed questionnaires on temperament, appetite, and feeding. RESULTS: Infants who used a pacifier at 4 months or later (68%) had greater conditional weight gain from birth to 6 months (p = 0.01), weight-for-length z-score at 1 year (p < 0.001), and BMI z-score at 2 years (p < 0.001) than infants who did not. Infants using a pacifier at ≥4 months were more likely to be overweight at ages 1 year (11.7% vs. 1.3%, p = 0.03) and 2 years (20.1% vs. 7.9%, p = 0.03). Pacifier use was associated with shorter breastfeeding duration and less responsive parent feeding styles, but these variables did not mediate the relationship between pacifiers and weight. Parent-reported temperament and appetite were unrelated to pacifier use. CONCLUSIONS: Pacifier use beyond early infancy is associated with accelerated infant growth and toddler overweight, although the reasons for this relationship are unclear.

Sociodemographic, perinatal and behavioral factors associated to types of milk consumed by children under in six months: birth coort. / Fatores sociodemográficos, perinatais e comportamentais associados aos tipos de leite consumidos por crianças menores de seis meses: coorte de nascimento.

This study evaluated factors associated with the consumption of breast milk (BM), infant formula (IF) and cow milk (CM) in children. This was a cohort study with 256 children followed-up at the 1st, 4th and 6th month of age in Viçosa (MG), Brazil. With respect to CM and IF, consumption was recorded regardless of BM intake. Regarding BM, only exclusive or predominant consumption was considered. From the 1st to the 6th month, an increase was recorded in the number of children who did not consume BM exclusively or predominantly (31.6%), as well as the consumption of CM (27.2%) and IF (9.3%). BM was associated with pacifier use at 1st month, and mother's employment status and pacifier use in the 4th and 6th month. Pacifier use was a risk factor for IF consumption in every month, while belonging to the lower income group was inversely associated in the 6th month. As for CM, the number of prenatal visits was a risk factor in every month, the mother's employment status and use of pacifier in the 4th month, family income, mother's employment status, low birth weight, number of prenatal visits and pacifier use in the 6th month. Since the 1st month, the introduction of other milk types is high, revealing that there is still much to go to ensure exclusive breastfeeding up to 6 months.

Avaliar os fatores associados ao consumo de leite materno (LM), fórmulas lácteas (FL) e leite de vaca (LV). Estudo de coorte com 247 crianças acompanhadas no 1°, 4° e 6° mês de vida, em Viçosa-MG. Para o LV e FL contabilizouse o consumo independentemente da ingestão de LM. Para o LM, considerou-se apenas o consumo exclusivo ou predominante. Do 1° ao 6° mês observou-se o aumento do não consumo de LM de forma exclusiva ou predominante (31,6%), bem como do consumo de LV (27,2%) e FL (9,3%). O LM associou-se ao uso de chupeta no 1° mês, e ao trabalho materno e uso de chupeta no 4° e 6° mês. O uso de chupeta foi fator de risco para o consumo de FL em todos os meses, enquanto pertencer ao grupo de menor renda foi inversamente associado no 6° mês. Para o LV, o número de consultas pré-natal foi fator de risco em todos os meses, o trabalho materno e o uso de chupeta no 4° mês, a renda familiar, trabalho materno, baixo peso ao nascer, número de consultas pré-natal e uso de chupeta no 6° mês. Desde o 1° mês a introdução de outros tipos de leite é elevada, revelando que ainda há muito a se percorrer para a garantia do aleitamento materno exclusivo até os 6 meses.

Fatores sociodemográficos, perinatais e comportamentais associados aos tipos de leite consumidos por crianças menores de seis meses: coorte de nascimento / Sociodemographic, perinatal and behavioral factors associated to types of milk consumed by children under in six months: birth coort

Resumo Avaliar os fatores associados ao consumo de leite materno (LM), fórmulas lácteas (FL) e leite de vaca (LV). Estudo de coorte com 247 crianças acompanhadas no 1°, 4° e 6° mês de vida, em Viçosa-MG. Para o LV e FL contabilizouse o consumo independentemente da ingestão de LM. Para o LM, considerou-se apenas o consumo exclusivo ou predominante. Do 1° ao 6° mês observou-se o aumento do não consumo de LM de forma exclusiva ou predominante (31,6%), bem como do consumo de LV (27,2%) e FL (9,3%). O LM associou-se ao uso de chupeta no 1° mês, e ao trabalho materno e uso de chupeta no 4° e 6° mês. O uso de chupeta foi fator de risco para o consumo de FL em todos os meses, enquanto pertencer ao grupo de menor renda foi inversamente associado no 6° mês. Para o LV, o número de consultas pré-natal foi fator de risco em todos os meses, o trabalho materno e o uso de chupeta no 4° mês, a renda familiar, trabalho materno, baixo peso ao nascer, número de consultas pré-natal e uso de chupeta no 6° mês. Desde o 1° mês a introdução de outros tipos de leite é elevada, revelando que ainda há muito a se percorrer para a garantia do aleitamento materno exclusivo até os 6 meses.

Abstract This study evaluated factors associated with the consumption of breast milk (BM), infant formula (IF) and cow milk (CM) in children. This was a cohort study with 256 children followed-up at the 1st, 4th and 6th month of age in Viçosa (MG), Brazil. With respect to CM and IF, consumption was recorded regardless of BM intake. Regarding BM, only exclusive or predominant consumption was considered. From the 1st to the 6th month, an increase was recorded in the number of children who did not consume BM exclusively or predominantly (31.6%), as well as the consumption of CM (27.2%) and IF (9.3%). BM was associated with pacifier use at 1st month, and mother's employment status and pacifier use in the 4th and 6th month. Pacifier use was a risk factor for IF consumption in every month, while belonging to the lower income group was inversely associated in the 6th month. As for CM, the number of prenatal visits was a risk factor in every month, the mother's employment status and use of pacifier in the 4th month, family income, mother's employment status, low birth weight, number of prenatal visits and pacifier use in the 6th month. Since the 1st month, the introduction of other milk types is high, revealing that there is still much to go to ensure exclusive breastfeeding up to 6 months.

Determinants of the mean growth rate of children under the age of six months: a cohort study. / Determinantes da velocidade média de crescimento de crianças até seis meses de vida: um estudo de coorte.

This study aimed to investigate some factors that contributed to higher or lower growth rate of children up to the sixth month of life. This is a cohort study with 240 children evaluated in four stages. Variables of birth, eating habits of the child, mothers' breast-feeding difficulty and pacifier use were investigated. Children's weight gain rate (grams/day) and size gain (cm/month) were measured in all assessments and compared according to the variables of interest. In the first month, weight gain rate of children born by cesarean section was smaller. By the second month, the growth rate (weight and size gain) was higher among children who were exclusively or predominantly breastfed and lower among those who consumed infant formula. Children of mothers who reported difficulty to breastfeed showed a lower growth rate until the second month. Children age four months who consumed porridge had lower weight and size gain rate. Pacifier use was associated with lower weight gain rates up the first, second and fourth month.

Determinantes da velocidade média de crescimento de crianças até seis meses de vida: um estudo de coorte / Determinants of the mean growth rate of children under the age of six months: a cohort study

Resumo Este estudo teve como objetivo a investigação de alguns fatores que contribuíram para uma maior ou menor velocidade de crescimento de crianças até o sexto mês de vida. Estudo de coorte com 240 crianças, avaliadas em quatro momentos. Foram investigadas variáveis de nascimento, práticas alimentares da criança, dificuldade da mãe em amamentar e uso de chupeta. A velocidade de ganho de peso (gramas/dia) e ganho de comprimento (centímetros/mês) das crianças foi calculada em todas as avaliações e comparadas de acordo com as variáveis de interesse. No primeiro mês, a velocidade de ganho de peso das crianças nascidas de parto cesáreo foi menor. Até o segundo mês, a velocidade de crescimento (ganho de peso e comprimento) foi maior entre as crianças em aleitamento exclusivo ou predominante e menor entre as que consumiam fórmula infantil. Os filhos de mães que referiram dificuldade na amamentação apresentaram menor velocidade de crescimento até o segundo mês. As crianças com quatro meses que consumiam mingau apresentaram menores velocidade de ganho de peso e comprimento. O uso de chupeta esteve associado à menores velocidades de ganho de peso até o primeiro, segundo e quarto mês.

Abstract This study aimed to investigate some factors that contributed to higher or lower growth rate of children up to the sixth month of life. This is a cohort study with 240 children evaluated in four stages. Variables of birth, eating habits of the child, mothers' breast-feeding difficulty and pacifier use were investigated. Children's weight gain rate (grams/day) and size gain (cm/month) were measured in all assessments and compared according to the variables of interest. In the first month, weight gain rate of children born by cesarean section was smaller. By the second month, the growth rate (weight and size gain) was higher among children who were exclusively or predominantly breastfed and lower among those who consumed infant formula. Children of mothers who reported difficulty to breastfeed showed a lower growth rate until the second month. Children age four months who consumed porridge had lower weight and size gain rate. Pacifier use was associated with lower weight gain rates up the first, second and fourth month.