Table 4.

Questionnaire items and clinical measurements in the KNCC Community Cohort

Category	Measurements
Questionnaire	Demographic characteristics (age, sex, marital status, education etc.), past medical history (including cancer and other chronic diseases), family history of cancer, history of preventive medicine (including cancer screening and vaccination against hepatitis B virus), dietary habit (26 food items including raw freshwater fish), smoking and alcohol drinking habits, physical activity, occupational history, history of exposure to acupuncture and blood transfusion, history of exposure to pesticides and electromagnetic fields, reproductive history for women (menarche, menopause, oral contraceptive use, pregnancy, parity, breast feeding etc.)
Anthropometric	Height, weight, waist circumference, blood pressure
Laboratory tests	CBC: RBC, WBC, haemoglobin, haematocrit, platelets; Serology: total protein, albumin, ALT, AST, -GTP, creatinine, total cholesterol, triglyceride, HDL, uric acid, BUN, fasting blood sugar, HBsAg, HBsAg, anti-HCV; Urinalysis: pH, occult blood, protein, glucose, cotinine, NNAL; Helminth parasite: Clonorchis sinensis

CBC, blood cell counts; RBC, red blood cells;WBC, white blood cells; ALT, alanine aminotransferase; AST, aspartateaminotransferase; -GTP, gamma- guanosine triphosphate; HDL, high-density lipoprotein; BUN, blood urea nitrogen; HBsAg,hepatitis B surface antigen; HBsAb, antibodies against hepatitis B surface antigen; anti-HCV, antibodies against HCV; NNAL, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol.