Table 1. Characteristics of participants in the validation study.^a .

Variables	number	%
GenderFemaleMale	12978	62.337.7
Marriage statusMarriedDivorced or widowed	19116	92.37.7
EducationJunior high school and belowSenior high school and above	17925	87.812.2
Type of JobFarmersBlue collar workersOther	796459	39.131.729.2
Smoking statusCurrent smokerEx-smokerNever smoker	564145	27.32.070.7
Alcohol drinking statusYesNo	42165	20.379.7
Income (RMB)b<35,000≥35,000	99105	48.551.5
	mean	SD
Age (years)	51.5	10.5
BMI (Kg/m2)	24.9	3.8
SBP (mmHg)	126.6	15.0
DBP (mmHg)	82.2	8.6
FPG (mmol/L)	5.4	2.0
TC (mmol/L)	4.7	1.0
TG (mmol/L)	1.5	0.9

BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; FPG, fasting plasma glucose; TC, total cholesterol; TG, triglyceride; SD, standard deviation.

^adata were from FFQ1.

^bfamily’s annual income.