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1.
J Nutr Health Aging ; 22(3): 387-392, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29484352

RESUMO

BACKGROUND: Several observational studies have shown association between diet quality and depression, but few studies have explored the interrelationship between these variables. OBJECTIVE: The aim of this study was to assess the interrelationship between diet quality and depressive symptoms in elderly. DESIGN: Cross-sectional study. SETTING: Population based. PARTICIPANTS: 1,378 elderly in the city of Pelotas, Brazil. MEASUREMENTS: The diet quality was assessed by a short food frequency questionnaire and the prevalence of depressive symptoms was estimated by the abbreviated Brazilian version of the Geriatric Depression Scale (GDS). The association between diet quality and depressive symptoms was assessed using logistic regression. RESULTS: The prevalence of depressive symptoms was 15.3%. Elderly with low-quality diet were more likely to experience depressive symptoms, and the association was almost twice higher in males than in females (men OR = 3.8, 95% CI 1.4, 10.6; women OR = 2.1, 95% CI: 1.4, 3.3). On the other hand, depressive elderly had higher odds of consuming a low-quality diet (OR 2.4, 95% CI: 1.7, 3.8). LIMITATIONS: Self-reported data and cross-sectional design limit our conclusions. CONCLUSIONS: The choice of a low-quality diet was associated to a higher risk of depressive symptoms in elderly, and vice-versa. These results highlight the importance of encouraging the choice of healthy food habits, especially in depressed elderly, in order to promote healthy aging.


Assuntos
Depressão/diagnóstico , Transtorno Depressivo Maior/diagnóstico , Dieta , Comportamento Alimentar , Envelhecimento Saudável , Idoso , Idoso de 80 Anos ou mais , Brasil , Estudos Transversais , Endonucleases , Feminino , Humanos , Modelos Logísticos , Masculino , Proteínas dos Microfilamentos , Pessoa de Meia-Idade , Proteínas Nucleares , Razão de Chances , Prevalência , Autorrelato , Inquéritos e Questionários , Universidades
2.
Rev Neurol ; 45(3): 155-62, 2007.
Artigo em Espanhol | MEDLINE | ID: mdl-17661275

RESUMO

INTRODUCTION: Alcoholism is considered a chronic, progressive and frequently mortal disease; it is a primary phenomenon rather than a sign or symptom of other diseases. With the aim to reduce the alcohol consumption and the relapse in alcoholics, several pharmacological strategies have been applied; among them the opioid antagonists have been successfully used. The scope of the present study is to show experimental evidence of the effect of different opioid antagonists on alcohol consumption on the base of their receptor specificity in different pharmacological strategies. DEVELOPMENT: Alcohol consumption increases the release of endogenous opioids; therefore, the opioid receptor blocked apparently decreases the rewarding alcohol effects. On this base, the unspecific antagonists as naloxone and naltrexone are the more used in clinic; these substances bind with different affinity to mu, delta and kappa receptors. Specific opioid receptor antagonists have been studied with the scope to clear up the participation of the different opioid receptors modulating the alcohol intake. Although, there is inconsistency in the findings, these studies suggest that the delta and mainly the mu receptors have an important participation modulating alcohol consumption. CONCLUSION: There is sufficient evidence that the opioid system play an important role in the alcohol dependence; however, it is necessary to study integrally the different neurochemistry systems with the scope to understand the neurophysiologic mechanisms underlying the alcohol addiction.


Assuntos
Consumo de Bebidas Alcoólicas , Antagonistas de Entorpecentes/uso terapêutico , Consumo de Bebidas Alcoólicas/tratamento farmacológico , Animais , Comportamento Aditivo , Humanos , Peptídeos Opioides/metabolismo
3.
Am J Clin Nutr ; 67(3): 452-8, 1998 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9497189

RESUMO

A new international growth reference is being prepared based on children who are fed according to World Health Organization recommendations, which entail exclusive breast-feeding for the first 4-6 mo of life. However, the number of exclusively breast-fed infants in most societies is small, so that selection biases may result from using such a population. We examined the variability in linear and soft tissue growth of infants according to their feeding patterns, emphasizing differences between exclusively and predominantly (breast milk plus fluids) breast-fed infants. About 650 infants from a relatively developed urban area in southern Brazil were examined at the ages of 1, 3, 6, and 12 mo, and an additional 800 infants at 6 and 12 mo. At each visit, infants were weighed and measured and a 24-h dietary recall was completed with the infants' caretakers. In the analyses of growth, care was taken to address the biases of reverse causality, regression to the mean, and confounding. There was little association between feeding pattern and growth in the first month. From 1 to 3 mo, partially breast-fed infants tended to gain more weight, followed by those who were completely weaned. From 3 to 6 mo, fully weaned infants grew fastest in weight and length and exclusively breast-fed infants grew slowest. After 6 mo of age, the growth in length of partially breast-fed and fully weaned infants was similar, but the latter gained more weight. There were virtually no differences between exclusively and predominantly breast-fed infants in the first 6 mo of life. There results suggest that both of these groups may be pooled for the purpose of constructing growth references.


PIP: Under the auspices of the World Health Organization, a new international growth reference is being developed to reflect the growth of breast-fed infants and their tendency to falter from 3-4 months onward. Of concern, however, is the small number of exclusively breast-fed infants in most societies and the potential for selection bias. A study conducted in Brazil in 1993 found no significant differences between exclusively and predominantly breast-fed infants in the first 6 months of life, suggesting that both these groups can be pooled for the purpose of growth reference construction. 650 infants from a relatively developed urban area in southern Brazil (Pelotas) were examined at 1, 3, 6, and 12 months of age and an additional 800 infants were enrolled at 6 and 12 months. There was little association between growth and feeding pattern in the first month of life. Slower growth in the first month increased the risk of subsequent weaning. From months 1-3, partially breast-fed infants tended to gain more weight, followed by those who were completely weaned. During months 3-6, fully weaned infants grew fastest in terms of both weight and length and exclusively breast-fed infants grew slowest. After 6 months of age, the growth in length of partially breast-fed and fully weaned infants was similar, but the latter group gained more weight. The tendency for breast-fed infants to grow more slowly should be considered in view of the many benefits of breast feeding, including protection against infections and diseases of the immune system, psychological advantages, and birth spacing.


Assuntos
Aleitamento Materno , Desenvolvimento Infantil , Antropometria , Brasil/epidemiologia , Estudos de Coortes , Humanos , Lactente , Fatores Socioeconômicos
4.
Cancer Epidemiol Biomarkers Prev ; 9(2): 213-6, 2000 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10698484

RESUMO

We performed a case-control study to assess the role of hepatitis B virus (HBV), hepatitis C virus (HCV), GB virus C/hepatitis G virus (HGV), TT virus, alcohol intake, and tobacco smoking as risk factors for hepatocellular carcinoma (HCC) in the presence or absence of cirrhosis. We prospectively recruited 174 patients with a first diagnosis of HCC admitted to the main hospitals in Brescia, North Italy. On the basis of histological, clinical, and radiological criteria, the presence of cirrhosis was established in 142 cases, excluded in 21 cases, and remained undefined in 11 cases. Among the HCC cases without cirrhosis, a histological picture of normal liver was found in a single patient, chronic viral hepatitis was found in 11 patients, alcoholic hepatitis was found in 5 patients, nonspecific reactive hepatitis was found in 3 patients, and hemochromatosis was found in 1 patient. As controls, we also included 610 subjects unaffected by hepatic diseases and admitted to the same hospitals as cases. The odds ratios for having HCC according to positivity for HCV RNA, HBsAg and/or HBV DNA, and alcohol intake > 80 g/day (95% confidence interval) were as follows, in the presence and absence of cirrhosis, respectively: (a) 33.5 (17.7-63.4) and 19.7 (6-64.8) for HCV RNA; (b) 17.6 (9.0-34.4) and 20.3 (5.7-72.6) for HBsAg; and (c) 5.5 (3.1-9.7) and 4.6 (1.5-13.8) for alcohol intake. No association was found with HGV or TT virus infections or tobacco. This study has shown that most HCC cases arising in the area are due to HBV, HCV, or alcohol intake, in both the presence and absence of cirrhosis.


Assuntos
Carcinoma Hepatocelular/etiologia , Cirrose Hepática/complicações , Neoplasias Hepáticas/etiologia , Idoso , Consumo de Bebidas Alcoólicas/efeitos adversos , Carcinoma Hepatocelular/epidemiologia , Estudos de Casos e Controles , Feminino , Flaviviridae/patogenicidade , Hepacivirus/patogenicidade , Hepatite B/complicações , Vírus da Hepatite B/patogenicidade , Hepatite C/complicações , Humanos , Itália/epidemiologia , Neoplasias Hepáticas/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Fumar/efeitos adversos
5.
Pediatrics ; 95(4): 497-9, 1995 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-7700747

RESUMO

OBJECTIVE: To determine the relationship between pacifier use at 1 month of age to the duration of breast-feeding to 6 months of age. DESIGN: Longitudinal study of infants from birth to 6 months of age. POPULATION: Six hundred five rooming-in infants born at the largest hospital in Guarujá, São Paulo, Brazil, during January and February 1993. MAIN OUTCOME MEASURES: Prevalence of breast-feeding (exclusive, predominant, and complementary) at 1, 4, and 6 months of age. RESULTS: Relative risk for weaning between 1 and 6 months of age was 3.84 (95% confidence interval 2.65-5.50) for pacifier users at 1 month of age, compared with nonusers. When an adjustment was made for possible confounding variables through Cox regression analysis, the relative risk dropped to 2.87 (95% confidence interval 1.97-419). CONCLUSION: Pacifier use is highly correlated with early weaning, even after controlling for possible confounders. Until it is determined if pacifier use is causally related to weaning or is a marker for other undetermined causes, pacifier use probably should not be recommended for breast-fed infants.


Assuntos
Aleitamento Materno/estatística & dados numéricos , Cuidado do Lactente , Feminino , Humanos , Lactente , Recém-Nascido , Fatores de Tempo , Desmame
6.
Int J Epidemiol ; 27(2): 242-7, 1998 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-9602405

RESUMO

BACKGROUND: Low birthweight infants suffer greater mortality and neonatal morbidity, grow less well in infancy and show poorer psycho-motor development. However, this simple categorization may obscure important differences in aetiology and prognosis between infants born stunted, thin, or both. METHODS: In 1993, all births in Pelotas, Brazil, were enrolled into a prospective study of health and development in infancy. Of 5249 live births, 5160 had length and weight measures at birth, and were classified into tertiles of length and ponderal index. All deaths and hospitalizations were monitored, and suspected developmental delay and attained growth at 12 months were assessed on a subsample of 1364 infants. Logistic regression was used to control for gestational age and socioeconomic status. RESULTS: There was no association between birth length and ponderal index tertiles. After adjusting for gestational age, infants in the lower tertiles of both length and ponderal index presented a 3.8-times higher risk of mortality from day 8 to day 365, and a 2.5-times higher risk of hospitalization compared to infants with greater birth lengths and/or ponderal indices. Suspected developmental delay was associated with length and, less strongly, with ponderal index, but there was no synergism between the two. Infants in the middle and upper tertiles of ponderal index at birth became thinner. CONCLUSIONS: Birth length was strongly associated with development at 12 months, but only infants born both short and thin were at increased risk of mortality and hospitalizations. The combination of the two measures provides a useful classification of the anthropometric status of the newborn.


PIP: A prospective study of all 5249 live births in Pelotas, Brazil, in 1993 examined interactions between health and development in infancy. The 5160 infants who had length and weight measurements taken at birth were classified into tertiles of length-for-age Z score and ponderal index--a measure of soft tissue growth. There was no association between these two measures. After adjustments for gestational age, infants in the lower tertiles of both length and ponderal index had a 3.8 times greater risk of mortality from day 8 to 365 and a 2.5 times higher risk of hospitalization than infants in the high tertile. However, infants born short but not thin, or thin but not short, were not at increased risk of either mortality or hospitalization. Suspected developmental delay at 12 months was associated with shorter stature at birth and, less strongly, with a lower ponderal index, but there was no synergism between the two measures. Infants in the middle and upper tertiles of ponderal index at birth became markedly thinner in the first year of life, while length changes were less strongly associated with initial status. Overall, these findings suggest that the combination of length and ponderal index at birth may provide a functionally relevant means of classifying the newborn's anthropometric status since the two measures are relatively independent of each other at the level of the individual and appear to affect different aspects of the infant's subsequent health and development.


Assuntos
Antropometria , Desenvolvimento Infantil , Crescimento , Hospitalização/estatística & dados numéricos , Mortalidade Infantil , Adulto , Peso ao Nascer , Brasil/epidemiologia , Estudos de Coortes , Feminino , Seguimentos , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Estudos Prospectivos , Fatores de Risco , Classe Social
7.
Alcohol ; 19(1): 15-22, 1999 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-10487383

RESUMO

Wistar rats were studied during forced and voluntary alcohol consumption, and continuous or periodic access to ethanol (6%) v/v with different availability of fluids. Absolute volume of alcohol consumption was not different between sexes in any condition; however, females consumed significantly more alcohol than males on a g/kg basis in all conditions. These differences were significantly more extensive during continuous free-choice to alcohol and water than during forced alcohol consumption. Females showed greater alcohol preference than males only during continuous free-choice to alcohol and water. During periodic free-choice to alcohol and water condition, alcohol consumption was distributed during more hours throughout the day in females than males. During periodic free-choice to alcohol and to an isocaloric sweetened solution (ISS), intakes of ISS were very high compared to regular intakes of daily water; nevertheless, alcohol consumption was maintained to similar levels observed in continuous free-choice to alcohol and water and represented almost 50% of regular daily consumes of water in males and females. Free-choice for alcohol and ISS modified the usual pattern of alcohol consumption during the daily light-dark cycle in males and females and reduced the time devoted to drinking alcohol compared to other conditions, in which similar intakes were observed. Results show that the extent of the higher alcohol consumption in females than males and the changes in patterns of alcohol intake were dependent on the nature of the ingestion schedule.


Assuntos
Consumo de Bebidas Alcoólicas/psicologia , Depressores do Sistema Nervoso Central/administração & dosagem , Etanol/administração & dosagem , Animais , Feminino , Masculino , Ratos , Ratos Wistar , Fatores Sexuais
8.
Alcohol ; 21(2): 181-5, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10963941

RESUMO

It has been described that alcohol treatment after weaning produces a delay in the onset of puberty and a decrease in the body weight of female rats; however, during development, there are periods with different sensitivity to endogenous and exogenous substances. In this study, two daily doses of 2.5 g/kg of ethanol each administered to female pups during days 13-18 of postnatal age produced an advance in the age at vaginal opening but induced no effect on the body weight; however, the onset of sexual behavior was not advanced. Fertility and reproduction measures were not significantly impaired by this treatment. It is supported that, in this period, alcohol can produce different effects - even opposite to those described in other developmental stages - which seems to represent a critical period for alcohol action.


Assuntos
Envelhecimento , Etanol/administração & dosagem , Lactação , Maturidade Sexual/efeitos dos fármacos , Animais , Peso Corporal , Estro , Etanol/farmacologia , Feminino , Masculino , Ratos , Ratos Wistar , Comportamento Sexual Animal/efeitos dos fármacos , Vagina/crescimento & desenvolvimento
9.
Monaldi Arch Chest Dis ; 55(3): 194-200, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10948664

RESUMO

Tobacco smoking and occupational exposure are the major factors responsible for chronic obstructive pulmonary disease (COPD) worldwide. The prevalence of this disease and its main risk factors were investigated in an area characterized by a high density of iron- and steelworking factories in North Italy. A total of 1,497 subjects (50% male) aged 40-59 yrs underwent an interview and a physical assessment, and 1,244 of them also underwent spirometry. The prevalences of COPD and asthma were 16.1 and 5.2% among males and 4.4 and 4.0% among females. COPD and respiratory symptoms were associated with both smoking and occupational exposure in males: the odds ratios for having been occupationally exposed among males were 2.3 (95% confidence interval 1.4-3.7) for COPD and 1.7 (1.2-2.6) for respiratory symptoms. No association was found between asthma and tobacco smoking or occupational exposure. The forced expiratory volume in one second and forced vital capacity were associated negatively with smoking and not associated with occupational exposure. In females, lesser effects of cigarette smoking on both self-reported respiratory diseases and lung function tests were found. The attributable risks of chronic obstructive pulmonary disease for smoking and occupational exposure among males were 52.9 and 8.8%, respectively, and 60.3% when considered together, whereas 18.8% of chronic obstructive pulmonary disease cases among females were attributable to smoking.


Assuntos
Asma/epidemiologia , Pneumopatias Obstrutivas/epidemiologia , Exposição Ocupacional , Fumar/epidemiologia , Adulto , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Espirometria
10.
Cad Saude Publica ; 9 Suppl 1: 14-27, 1993.
Artigo em Português | MEDLINE | ID: mdl-15448817

RESUMO

To investigate the determinants of malnutrition among low-income children, the effects of socioeconomic, environmental, reproductive, morbidity, child care, birthweight and breastfeeding variables on stunting and wasting were studied. All 354 children below two years of age living in two urban slum areas of Pelotas, southern Brazil, were included. The multivariate analyses took into account the hierarchical structure of the risk factors for each type of deficit. Variables selected as significant on a given level of the model were considered as risk factors, even if their statistical significance was subsequently lost when hierarchically inferior variables were included. The final model for stunting included the variables education and presence of the father, maternal education and employment, birthweight and age. For wasting, the variables selected were the number of household appliances, birth interval, housing conditions, borough, birthweight, age, gender and previous hospitalizations.

11.
Cad Saude Publica ; 16(1): 115-28, 2000.
Artigo em Português | MEDLINE | ID: mdl-10738156

RESUMO

This cross-sectional study among rural workers in the mountainous region of the southernmost Brazilian State of Rio Grande do Sul was designed to identify the characteristics of work performed on family farms. The research focused on the socio-demographic profiles of rural workers, identifying the characteristics of rural labor and describing the prevalence of some disease entities in such populations. Some 1479 rural workers from 495 farms were interviewed. In this sample, 87% of the individuals were members of the farm-owning family, mean age was 41 years, 56% were males, and mean schooling was 5 years. Farms had a mean area of 37 hectares, 50% had at least one type of farm machinery, and fruits constituted the main crop. About 75% of workers handled several types of pesticides, while 12% reported at least one lifetime episode of pesticide poisoning. Prevalence of minor psychiatric disorders was 36%, and annual frequency of occupational injuries was 10%. There was a wide variety of activities and occupational risks. The high prevalence of health problems identified in the study calls attention to the need for measures to promote and protect rural workers' health.


Assuntos
Acidentes de Trabalho/estatística & dados numéricos , Doenças dos Trabalhadores Agrícolas/epidemiologia , Transtornos Mentais/epidemiologia , Praguicidas/intoxicação , Saúde da População Rural/estatística & dados numéricos , Doença Aguda , Adolescente , Adulto , Idoso , Brasil/epidemiologia , Estudos Transversais , Escolaridade , Feminino , Humanos , Masculino , Estado Civil , Pessoa de Meia-Idade , Prevalência , Fatores Socioeconômicos
12.
Cad Saude Publica ; 14(3): 487-92, 1998.
Artigo em Português | MEDLINE | ID: mdl-9761601

RESUMO

All 5304 births in the hospitals of Pelotas, Rio Grande do Sul, Brazil in 1993 were studied. Neonates were examined and their mothers were interviewed regarding sociodemographic conditions, family income, reproductive health, and medical care during pregnancy. Ninety-five per cent of women received prenatal care. The mean number of physician visits during pregnancy was 7 and the majority of the women (84.7%) began visits before the fifth month of pregnancy. Women who did not receive prenatal care were from the lowest socioeconomic stratum and were mostly adolescents or over 40 years of age. Incidence of low birth weight in this group was 2.5 times that of the group with more than five visits (p>0.001). Perinatal mortality rate was 50.6/1000 in the group without prenatal care and 15.8/1000 in the group with more than five visits. With regard to utilization of health care, the study shows that twenty-five per cent of women with high gestational risk received inadequate prenatal care. The rate was less than 10% in the group of women with low gestational risk. These results suggest the need for improvement in the quality of prenatal care with special attention for mothers with high gestational risk.


Assuntos
Cuidado Pré-Natal , Adolescente , Adulto , Brasil , Feminino , Humanos , Mortalidade Infantil , Recém-Nascido de Baixo Peso , Recém-Nascido , Paridade , Gravidez , Fatores de Risco , Fatores Socioeconômicos
13.
Cad Saude Publica ; 17(6): 1375-81, 2001.
Artigo em Português | MEDLINE | ID: mdl-11784898

RESUMO

Epidemiological literature on occupational accidents among rural workers is scarce in Brazil. This population-based cross-sectional study was designed to investigate the characteristics of farming accidents occurring in the rural area of Pelotas, Southern Brazil. A multi-stage sampling scheme was used to select a representative sample of farms. From January to April 1996, a total of 258 rural families were visited, and all 580 rural workers identified in these families answered a standardized questionnaire. Sixty-three rural workers (11%) reported at least one work-related accident in the previous twelve months. There were 82 accidents during the study period, mainly related to the use of hand farm tools (29%) and handling farm animals (27%). The main types of injuries were cuts (50%), bruises (13%), and burns (9%). The body areas most frequently involved were hands (34%), feet (29%), and legs (18%). Among the injured rural workers, only 32% used health services to treat the resulting lesions (46% went to primary health care facilities and 36% to emergency services).


Assuntos
Acidentes de Trabalho/estatística & dados numéricos , População Rural/estatística & dados numéricos , Adolescente , Adulto , Brasil/epidemiologia , Criança , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Exposição Ocupacional , Fatores Socioeconômicos
14.
Rev Saude Publica ; 25(5): 394-400, 1991 Oct.
Artigo em Português | MEDLINE | ID: mdl-1820630

RESUMO

An attempt was made to identify the risks resulting from exposure to the chemicals to which workers are exposed as well as from the poor working conditions to which they are subject in a chemical and pharmaceutical factory. A descriptive study based on the "workers model"--a methodological approach developed in Italy in the 60's, was carried out. Such a study requires direct contact with the workers and has the advantage of overcoming the difficulty of gaining access to their work-place. The activities of the different departments of the plant were reconstructed and the main chemicals used, the main physical complaints, the potential harms and the main environmental risks identified. The report on the harmful working conditions produced was used by the workers as a means of pressing the authorities into carrying out an inspection of the plant concerned to verify its accuracy. The report's findings have been confirmed and demonstrate the usefulness of the methodological approach adopted. The workers' publicizing of the study's findings through the means of mass communication have helped to build up greater public awareness of the occupational and environmental risks of that particular industrial activity.


Assuntos
Participação da Comunidade , Substâncias Perigosas/efeitos adversos , Exposição Ocupacional , Indústria Química , Indústria Farmacêutica , Humanos , Fatores de Risco
15.
Rev Saude Publica ; 35(3): 269-75, 2001 Jun.
Artigo em Português | MEDLINE | ID: mdl-11486150

RESUMO

OBJECTIVE: To investigate the frequency of rural occupational accidents and its association with potential risk factors. METHODS: The study was carried out in a urban area of Pelotas, RS, Brazil. A cross-sectional study was conducted. A representative sample of rural workers was selected using a multi-stage sampling. From January to April 1996, a total of 258 rural families were visited and all the 580 rural workers identified in those households answered a standardized questionnaire. RESULTS AND CONCLUSIONS: The prevalence of rural occupational accidents was 11%. After allowing for potential confounders, the main occupational hazards, as shown by logistic regression, were lower socioeconomic status (OR=1.81), non-white skin color (OR=3.50), and poor work satisfaction (OR=2.77).


Assuntos
Acidentes de Trabalho/estatística & dados numéricos , Adolescente , Adulto , Agricultura , Brasil/epidemiologia , Estudos Transversais , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prevalência , Fatores de Risco , População Rural/estatística & dados numéricos , Fatores Socioeconômicos
16.
Rev Saude Publica ; 34(5): 506-13, 2000 Oct.
Artigo em Português | MEDLINE | ID: mdl-11105115

RESUMO

OBJECTIVE: In an attempt to simplify the screening process for detecting obesity in adolescence, the performance of different cutoff values for body mass index (BMI) was assessed in a population-based cohort in Southern Brazil. METHODS: A total of 493 adolescents aged 15-16 years who lived in the city of Pelotas, Brazil, were studied. Obesity was defined according to the WHO criteria taking into account age and sex (a BMI equal to or greater than the 85th percentile of the NHANES I reference, plus subscapular and triceps skinfold equal to or greater than the 90th percentile of the same reference). Different BMI cutoff values were used to assess their specificity and sensitivity. RESULTS: For boys, BMI>/=25 kg/m(2) showed the best performance for detecting obesity, with a sensitivity of 90% and only 5% of false positives. The Brazilian proposed criteria that was used had 100% sensitivity but up to 23% of false positives. Higher cutoff values were also tested, but there was a slight increase in specificity, accompanied by a marked reduction in sensitivity. CONCLUSIONS: The BMI cutoff of 25 kg/m(2) presented the best performance for screening obesity in the studied sample, and it is recommended for adolescents aged 15 and more in populations with similar characteristics. It provides a single cutoff value to be used in primary health services, eliminating the need for age and sex-specific values and skinfold measurements, and it is also consistent with the cutoff value proposed to identifying overweight adults.


Assuntos
Índice de Massa Corporal , Obesidade/diagnóstico , Adolescente , Adulto , Brasil/epidemiologia , Criança , Estudos de Coortes , Intervalos de Confiança , Feminino , Humanos , Masculino , Obesidade/epidemiologia , Prevalência , Sensibilidade e Especificidade , Dobras Cutâneas , População Urbana
17.
Rev Saude Publica ; 33(4): 391-400, 1999 Aug.
Artigo em Português | MEDLINE | ID: mdl-10542474

RESUMO

OBJECTIVE: In view of the shortage of population-based rural studies, this research project evaluated the associations between the characteristics of rural work and the occurrence of minor psychiatric disorders (MPD). METHODS: A cross sectional study was carried out on the 1,282 farm workers of 446 farms. Information about the farms (land extension, agricultural activities, technology and pesticide use) was collected. Demographic and socioeconomic data, characteristics of the work process and mental health indicators were obtained from the workers. RESULTS: MPD were found in 37.5% of the farm workers. The risk was higher on farms with a land extension of from 26 to 50 hectares, and lower where there was an increased level of job technology and schooling. The prevalence of MPD was higher among bean producers and lower among apple producers. Despite the impossibility of defining the direction of the causal link, pesticide poisoning was strongly associated with MPD. CONCLUSION: The results call attention to the dimension of the problem and to the importance of adopting new policies for the protection of farm workers' mental health.


Assuntos
Doenças dos Trabalhadores Agrícolas/epidemiologia , Transtornos Mentais/epidemiologia , Acidentes de Trabalho , Adulto , Brasil/epidemiologia , Estudos Transversais , Feminino , Humanos , Masculino , Praguicidas/intoxicação , Fatores de Risco , Fatores Socioeconômicos , Carga de Trabalho
18.
Rev Saude Publica ; 35(1): 32-8, 2001 Feb.
Artigo em Português | MEDLINE | ID: mdl-11285515

RESUMO

OBJECTIVE: To investigate the association between breast cancer and the duration of use of oral contraceptives (OC), and age it started to be used in a population of Pelotas, Southern Brazil. METHODS: There were identified 250 incident cases of breast cancer in patients aged 20 to 60 years from records of pathology laboratories and there were enrolled 1,020 controls drawn from hospital and neighbourhood population. For 90 cases identified in Pelotas, 270 hospital controls and 270 neighbourhood controls were selected, for another 78 cases in Pelotas, 234 controls were selected, and for 82 cases from other municipalities, 246 hospital controls were selected. Controls were matched by age. Adjusted analysis was performed using conditional logistic regression. RESULTS: No association between oral contraceptive use and breast cancer was found (OR=1.1;CI95% 0.7 - 1.6 for hospital controls, and OR=0.9;CI95% 0.6 - 1.6 for neighbourhood controls) neither for different duration of use or starting age. To increase the test power, 250 cases and all 1020 controls were analyzed together, and an odds ratio of 1.6 (CI95% 1.0 - 2.4) was found for women older than 45 years of age who had been using oral contraceptives for five years or more. CONCLUSIONS: No evidence was found of a general association between oral contraceptive use and breast cancer. When analyzing the whole date set, with all neighbourhood and hospital controls together, for women older than 45 years of age who had been using oral contraceptives for more than 5 years, it was found an increased risk almost statistically significant (p=0.05).


Assuntos
Neoplasias da Mama/induzido quimicamente , Anticoncepcionais Orais/efeitos adversos , Adulto , Idade de Início , Brasil/epidemiologia , Neoplasias da Mama/epidemiologia , Estudos de Casos e Controles , Feminino , Humanos , Pessoa de Meia-Idade , Razão de Chances , Fatores de Tempo
19.
Rev Saude Publica ; 28(5): 373-9, 1994 Oct.
Artigo em Português | MEDLINE | ID: mdl-7660040

RESUMO

A cross-sectional study of 354 children under two years of age was carried out in two periurban slums, with poor sanitary and socioeconomic conditions, located in Pelotas, southern Brazil. Most (79%) of the children studied were current users of pacifiers, 15% had never used one and the remaining 6% were ex-users. Among current users, 38% sucked a pacifier most of the time ("constant users"). Of the pacifiers in constant use, 93% were cultured for evidence of fecal contamination. Fecal coliforms were present in 49% of these. Diarrhoea was reported in 35% of all the children in the two weeks preceding the survey. Among constant pacifiers users, 40% had had diarrhoea in the preceding fortnight; this proportion was 32% for occasional users and 37% for non-users. These differences were not statistically significant.


Assuntos
Diarreia Infantil/microbiologia , Cuidado do Lactente , Brasil/epidemiologia , Distribuição de Qui-Quadrado , Estudos Transversais , Diarreia Infantil/epidemiologia , Diarreia Infantil/prevenção & controle , Enterobacteriaceae/isolamento & purificação , Fezes/microbiologia , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Análise Multivariada , Áreas de Pobreza , Prevalência , Fatores Socioeconômicos , Fatores de Tempo
20.
Rev Saude Publica ; 32(4): 335-44, 1998 Aug.
Artigo em Português | MEDLINE | ID: mdl-9876424

RESUMO

INTRODUCTION: The few studies on the use of medicines in children point to excessive use, and in these studies, physicians are those mainly responsible for the prescription of medicines. In order to get to know the patterns of consumption medicines better, a study was made in children in their first three months of life, according to social biological, food pattern and use of health services of variables. METHOD: The patterns of the use of medicines during the first three months of life in 655 urban children born in Pelotas, Brazil, in 1993, were described. Information on the use of medicines was collected during a two-week period in the first and third month of life. RESULTS: The use of medicines was reported by 65% of mothers at the 1st and 69% at the 3rd month of life. Seventeen per cent of children consumed three or more different medicines during those periods. Fixed combinations of three or more components-which was taken as an indicator of the poor of medicines quality-were consumed by 14% of the children at the 1st and 19% at the 3rd months of life. At the latter age, 20% of children had used a given medicine for one month or more. At the first month follow-up, Benzalkonium Chloride + Normal Saline Solution (nasal drops), Nystatin Mixture and Dimethicone + Homotropine were the most frequently used medicines. At the third month they were, Aspirin, Benzalkonium Chloride + Normal Saline Solution and Dimethicone + Homatropine. The main reasons for taking medicines were cramps at the first month and colds at the third. At the first month follow-up, children with three or more siblings used 64% less medicines than the older ones. Children who were not breast-fed at the end of the first month showed a 75% greater risk of use of medicines. Similar results were observed at the third month follow-up. Some of the medicines used were not recommendable for children. CONCLUSION: Since early age children are submitted to an intense use of medicines for almost every conceivable reason, with the risk of potential side-effects and the possible lead to medicine or other drugs addiction.


Assuntos
Uso de Medicamentos/estatística & dados numéricos , Fatores Etários , Brasil/epidemiologia , Intervalos de Confiança , Fatores Epidemiológicos , Serviços de Saúde/estatística & dados numéricos , Humanos , Lactente , Recém-Nascido , Razão de Chances , Prevalência , População Urbana
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