Table 1. Summary of common questions in the self-administered questionnaire for all study regions at baseline.

Measurements	Measurement lists
Basic characteristics
Demographics	Sex, age at baseline, height, weight, and weight at the age of 20 years
Education*	Educational attainment
Lifestyle characteristics
Alcohol consumption	Drinking status, age when the individual started drinking, type and amount of alcohol consumed, and drinking frequency
Smoking	Smoking status, age when the individual started smoking, number of cigarettes smoked, and information on passive smoking
Sleeping	Sleeping duration and subjective assessment of sleep
Exercise	Physical activity (including leisure-time, occupational, and household activities)
Diet	Food intake frequency
Clinical characteristics
Medication and supplements	Types of medications and supplements taken at least once a week
Disease history	Personal and family disease history
Psychological stress	Self-reported stress and stress management
Female reproductive history	Menstruation status, age at the start of menstruation, and information on pregnancy and childbirth

^*Excluding 3 regions (Iga, Fukuoka, and Kyusyu and Okinawa Population Study regions).