Abstract
Abstract Objectives: to determine and characterize the prevalence of congenital malformations among live births in Rondônia, from 2015 to 2019. Methods: an ecological study was conducted using publicly available data at Sistema de Informações sobre Nascidos Vivos collected in January 2021. The prevalence of congenital malformation and possible associations were calculated. The strength of the association between variables was measured using the odds ratio. Variables that were statistically significant at the 5% level were selected for adjusted odds ratio calculation using logistic regression models. The R programming language was used for all analyses and interactions with the database. A 95% confidence interval was considered. Results: a total of 1,110 records were analyzed. The overall prevalence of congenital malformation was 8.36, with higher rates observed among mothers over 35 years, those with low educational levels, unmarried status, and preterm birth. Infants with low birth weight and low Apgar scores also had higher prevalence rates of congenital malformations. Conclusion: the prevalence of congenital malformations in the state was similar to the national average, but regional disparities were observed and warrant further investigation.
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