1. Department of Community Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Rama VI Road, Ratchathewi, Bangkok 10400, Thailand
2. National Health Examination Survey Office, Nonthaburi 11000, Thailand
3. Department of Nutrition, Faculty of Public Health, Mahidol University, Bangkok 10400, Thailand
4. Ramathibodi School of Nursing, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
5. College of Public Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
6. Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
7. Epidemiology Unit, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
8. Faculty of Medicine, Chiang Mai University, Chiang Mai 50002, Thailand