Fig. 1
From: Association of serum oleic acid level with depression in American adults: a cross-sectional study
Restricted cubic spline of the relationship between serum oleic acid levels and depression. Adjusted for age, sex, race/ethnicity, education level, marital status, body mass index, physical activity, smoking status, alcohol status, metabolic syndrome, omega-3 polyunsaturated fatty acids, and total cholesterol (n = 3928). In (A), the solid line represents the line of best-fit, and the pale pink area represents the 95% confidence interval. B is density curves of serum oleic acid levels