Table 1 Summary of questions covered by the questionnaire at baseline in the Taizhou Longitudinal Study

Socioeconomic status

Household size, aged ≥ 30 years in household

Location of father and mother's birthplace

Household income, occupation, education, marriage status

Personal behavior

Smoking, use of computer, mobile phone, and microwave oven, watching of television

Type of food and drink

Drinking of alcohol, tea, and coffee, consumption of food grains, cooking oil, vegetables, meat, poultry, eggs, fresh milk, preserved milk, fish, bean curd,

Cooking style

Fuel (coal, gas, natural gas)

Boiled, stir-fried, deep-fried, steamed, grilled, cooked

Environment and occupational exposures

Exposure to chemical solvent, dye, engine oil, gasoline, rubber, plastic product, antiseptic, insecticide, chemical fertilizer, sawdust, asbestos, weaving fiber, dust

Physical activity

Light, middle, and heavy physical labor, physical output in work, during and after work, and leisure time.

Family history

Family history of hypertension, coronary artery disease, diabetes, peptic ulcer, cancer, and other chronic diseases

Current age, age at death, and cause of death of first- and second-degree relatives

Medical history

Medical conditions diagnosed by doctors (specifically itemized)

Use of health services

Use of Chinese medicines

Use of Western and other medications

Reproductive history

Age of menarche, menopause status and associated timing, parity and breastfeeding history

Use of contraceptives

History of use of hormone-replacement therapy

Hysterectomy or other gynecological interventions

Psychological status

Stress, anger/hostility, social isolation

Physical examination

Height, weight, waist size, hip size, blood pressure