Prevalence of common mental disorders in southern Brazilian women: a comparison of two population-based studies (2003 vs. 2015).

Purpose: To investigate the prevalence and associated factors of common mental disorders (CMD) in women, and comparing them in two periods, 2003 and 2015. Methods: A comparative study was conducted between two surveys with representative samples of women aged 20–60 years residing in southern Brazil. The final sample included 988 and 987 women from the 2003 and 2015 surveys, respectively. The presence of CMD was assessed using the Self-Reporting Questionnaire (SRQ-20 ≥ 8) in both surveys. Poisson regression analysis was used to evaluate the associations between the outcome (CMD) and variables of interest. Results: The mean age of the participants was 38.5 ± 11.1 years (2003) and 40.3 ± 11.4 years (2015). In 2003, the prevalence of CMD was 33.4% (95%CI: 30.5–36.3) and in 2015, it was 33.7% (95%CI: 30.8–36.7). Over 12 years, no significant differences were observed in the prevalence of CMD, except for a reduction in the prevalence in women of color and physically active. After adjusting, the prevalence ratios of CMD in 2003 and 2015 remained associated with low family income, a higher number of pregnancies, and tobacco use. Conclusions: This study showed a trend toward stability in the high prevalence of CMD among women. [ABSTRACT FROM AUTHOR]