Table 1.

Wording of questions comprising variables included in the analyses

Variables	Question
Suicidal ideation	During the past 12 months, did you ever consider suicide?
Currently married	What is your current marital status?
Body mass index	What is your height in centimeter? & what is your weight in kilogram?
Self-rated health	How would you rate your health when compared with same-aged peers?
Depression	Center for Epidemiologic Studies Depression Scale
Hope	Do you feel hopeful about the future?
Health insurance	What is your health insurance?
Household annual expenditure (RMB/year)	What is the annual household expenditure for the following items: food, smoke& alcohol, clothes, daily necessities, durable goods, labor services, children education, adult education and training, alimony payment, gifts, transportation, water/electricity, communication, medical service, house renting, others.
Debts	During the past year, did your family have any debts?
Employment	What is your current employment status?
Currently smoking	During the past month, whether do you smoke or not?
Currently drinking	During the past month, whether do you drink or not?