Fig. 4

Nonlinear associations of NHHR and BMI with depression
Legends: A, B, C Distribution for NHHR, BMI and NHHR-BMI; D, E, F Restricted cubic splines of the associations between NHHR/ BMI/ NHHR-BMI and depression. All models were adjusted for age, gender, race, education level, marriage status, PIR, daily activities smoking status, drinking status, hypertension, diabetes and CVD. Abbreviation: NHHR: non-high-density lipoprotein cholesterol (non-HDL-C) to high-density lipoprotein cholesterol (HDL-C) ratio; BMI: body mass index; NHHR-BMI: calculated by multiplying NHHR by BMI; OR: odds ratio; CI: confidence interval; PIR: poverty income ratio; CVD: cardiovascular disease