Prevalence and associated risk factors of antenatal depression among Brazilian pregnant women: A population-based study

•Antenatal depression (AD) is a common maternal mental health disorder that affects women globally and is considered a public health concern, especially in developing countries.•Overall, there is a lack of population-based studies assessing the prevalence and the relationship between sociodemographic and obstetric variables with AD.•Among 22.621 women (18–49 years old) from the Brazilian National Health Survey (PNS−2013) there was 800 pregnant women. The AD prevalence was 11.4% (95%CI: 8.5% - 14.9%).•AD was associated with lower education, a non-white skin color and living alone.•In Brazil, AD is prevalent and its associated with a vulnerable sociodemographic profile. An equitable mental health assistance for pregnant women should consider risks factors such as race, education and partner status.