Fig. 1From: Sex differences in the association between self-reported sleep duration, insomnia symptoms and cardiometabolic risk factors: cross-sectional findings from Brazilian longitudinal study of adult healthCardiometabolic risk factors by self-reported sleep duration. ELSA-Brasil (2012–2014). Generalized Additive Models (adjusted for all potential confounders) were used to evaluate the curve shape for the relationship between self-reported sleep duration and the outcomes. The solid black line represents the regression line and the dotted lines represent the 95% confidence interval. The horizontal red line indicates that there is no associationBack to article page