Figure 2. Restricted cubic spline model of the odds ratios (ORs) of depressive symptoms with total vegetables intake. The solid line and dashed lines represent the estimated ORs and the 95% confidence intervals. The lowest level of total vegetables intake (0 g/d) was as the referent. The relationship adjusted for gender, age, race, marital status, educational level, family income, BMI, recreational physical activity, work physical activity, smoking status, alcohol consumption, hypertension, diabetes, heart disease, stroke, and total daily energy intake (continuous, kcal/d). BMI, body mass index.