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Abstract Objectives: to evaluate coverage and identify factors associated with adequate prenatal care for adolescent mothers in Rio Grande, Southern Brazil, in a period of 13 years. Methods: over the years 2007, 2010, 2013, 2016 and 2019, a single standardized questionnaire was applied to all mothers at hospital level in this municipality. The outcome consisted of the proportion of puerperae women who started prenatal care in the first trimester and performed 6+ medical visits, completed 2+ HIV, syphilis, and urine tests. Chi-square test was used for proportions, Poisson regression in the multivariate analysis and the prevalence ratio (PR) as measure of effect. Results: among the 12,645 identified mothers, 2,184 (17.3%) were adolescents. Of this total, 35.2% (CI95%= 33.2%-37.2%) had received adequate prenatal care, ranging from 13.8% (10.8%-16.7%) in 2007 to 52,5% (46.8%-58.1%) in 2019. The adjusted analysis showed a higher PR for adequate prenatal care among those of older age and better schooling level, white/brown skin color, with a partner, never had an abortion, were primiparous and non-smokers. Conclusion: there was substantial improvement in coverage of adequate prenatal care over the period studied, but there is still a long way to go. The increase in this coverage depends on reaching adolescents who are younger, less educated, black skin color, living without a partner, multiparous and smokers.

Este estudo mediu a prevalência e identificou fatores associados à inadequação do pré-natal conforme diferentes critérios entre puérperas residentes no Município de Rio Grande, Rio Grande do Sul, Brasil, em 2010. Aplicou-se questionário padrão em até 24 horas após o parto a todas as mães que tiveram filho nas duas maternidades do município. Utilizou-se teste do qui- quadrado para comparar proporções e regressão de Poisson com ajuste robusto da variância na análise multivariável. Foram entrevistadas 2.395 mães (97,2% do total). Os índices de inadequação do pré-natal foram 28%, 27% e 58% segundo Takeda, Coimbra et al. e Silveira et al., respectivamente, com enormes disparidades entre categorias. A razão de prevalências à realização de pré-natal inadequado foi maior entre mães mais pobres. Após ajuste, quase todas as variáveis do modelo mostraram-se significativamente associadas à inadequação do pré-natal para Takeda e Coimbra et al., mas poucas em relação a Silveira et al. Este trabalho mostrou que o índice proposto por Silveira et al. é mais robusto e que é necessário melhorar a qualidade do pré-natal, sobretudo para as mais mães mais pobres.

Abstract Objectives: to assess alcohol intake prevalence and identify associated factors among pregnant women in the municipality of Rio Grande, RS, Brazil. Methods: this was a crosssectional study which included all parturient women residing in the municipality who gave birth in 2013. Two outcomes were characterized: alcohol intake during pregnancy and excessive alcohol intake during pregnancy. In the analysis, proportions were tested using the Chisquare test, whilst Poisson regression was used in the multivariate analysis. Results: 9.4% (CI95%= 8.210.5) of the 2,685 parturient women studied reported having consumed alcohol during pregnancy, with beer being most common beverage. Following adjustment, the factors associated with alcohol intake in pregnancy were: age ≥30 years, brown skin colour, living without a partner, low schooling, tobacco smoking and illicit drug use, having had more children and late onset of prenatal care. Excessive alcohol intake was found in 12.7% (CI95%= 8.616.9) of those who reported drinking during pregnancy and the factors associated with this practice were age ≥30 years, lower schooling and illicit drug use. Conclusions: this study found high alcohol intake during the gestation period and identified women more susceptible to this practice. There is an evident need for health professionals to work on preventing and handling alcohol intake among pregnant women in the municipality