DGC	Dietary Guidelines for Chinese;
SSAC	Shanghai Suburban Adult Cohort;
FFQ	food frequency questionnaire;
BMI	body mass index;
Cm	Centimeters;
Kg	Kilograms;
CES-D	Centers for Epidemiologic Studies Depression Scale;
CHEI	Chinese Healthy Eating Index;
DASH	Dietary Approaches to Stop Hypertension;
MD	Mediterranean Diet;
OR	odds ratio;
CI	95% confidence interval.