Prevalence of Alcohol and Tobacco Use and Perceptions Regarding Prenatal Care among Pregnant Brazilian Women, 2017 to 2018: A Mixed-Methods Study

Objective To identify the prevalence of alcohol and tobacco drug use among pregnant women and investigate their perceptions regarding advice from health professionals during prenatal care. Method We used a sequential explanatory mixed-methods design for this cross-sectional study; the study period was January 2017 to December 2018. Multistage random sampling resulted in the selection of 255 pregnant women assisted in primary care units and through the Family Health Strategy in a city in southern Brazil. Trained interviewers collected data on the use of alcohol and tobacco drugs and socioeconomic characteristics via a questionnaire. Qualitative interviews were performed with pregnant women identified as alcohol and tobacco drug users in the quantitative phase. Interviews proceeded consecutively until saturation was reached, followed by a thematic analysis of interview content based on Braun and Clarke. Results The prevalence of smoking and alcohol use was 12.55% and 14.12%, respectively. From the 14 interviews conducted, five categories emerged from the discourses: prenatal care from the perspective of pregnant women, habits and knowledge regarding smoking during pregnancy, habits and knowledge regarding alcohol use during pregnancy, previous experiences and empirical knowledge, and pregnant women’s preferences for talking about their habits. Conclusion for Practice Study findings identified smoking and alcohol use as habits among some women during pregnancy and, consequently, the need for improving care because of their superficial knowledge regarding tobacco and alcohol use. The findings underscore the importance of strengthening measures and establishing new strategies that ensure women’s understanding, empowerment, and choices—from the beginning of childbearing age—regarding habits during pregnancy.