1 *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan; Labour Force Statistics Office, Statistical Survey Department, Statistics Bureau, Ministry of Internal Affairs and Communications, Shinjuku, Tokyo, 162-8668 Japan; [email protected].
2 *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan.
3 Laboratory of Pharmaceutical Health Sciences, School of Pharmacy, Aichi Gakuin University, Nagoya, Aichi, 464-8650 Japan.
4 Statistical Analysis Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi, 466-8550 Japan.
5 Department of Public Health, Fujita Health University School of Medicine, Toyoake, Aichi, 470-1192 Japan.
6 Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan.
7 *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan; Section of Preventive and Public Health Dentistry, Faculty of Dental Science, Kyusyu University, Fukuoka, Fukuoka, 812-8582 Japan.
8 Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550 Japan.