[Loneliness and its association with sociodemographic and health indicators in Brazilian adults and older adults: ELSI-Brazil].

This study aimed to investigate the prevalence of loneliness and its associations with sociodemographic and health indicators in a nationally representative sample of Brazilian adults and older adults. Data from the baseline (2015-2016) of the Brazilian Longitudinal Study of Aging (ELSI-Brazil) were analyzed, and participants with complete information on the variables of interest (n = 7,957) were included. Loneliness was the outcome variable, which was based on the question "How often do you feel alone or lonely: always, sometimes, or never?" Independent variables included sociodemographic indicators and health behaviors and conditions.