Fig. 1From: Exploring the nonlinear relationship between body mass index and health-related quality of life among adults: a cross-sectional study in Shaanxi Province, ChinaNonparametric estimates for semiparametric regression model of EQ-5D for men. Estimates in the left plot are adjusted for age, marital status, educational attainment, residential area, economic status and physical activity. Estimates in the right plot further adjusted for co-morbidities. The dashed lines represent the 95 % confidence intervals. 10 participants with highest and lowest BMI values are not displayed because of estimation uncertainly for outlinersBack to article page