Objective The objectives of this study were: 1) to estimate the prevalence of multimorbidity in 2013 and 2019 in adults aged 20 to 59 years; 2) assess inequalities in the prevalence of multimorbidity in 2013 and 2019 according to educational level. Methods We used data from two cross-sectional surveys from the Brazilian National Health Survey (PNS) in 2013 and 2019. Multimorbidity was assessed from 14 lifetime ...