1. From the Department of Public Health (K.O.), Aichi Prefectural College of Nursing and Health, Nagoya; the Department of Preventive Medicine/Biostatistics and Medical Decision Making (R.H., Y.O.), Nagoya University Graduate School of Medicine, Nagoya; Kyoto University Health Center (T.K.), Kyoto; Daini Red Cross Hospital (A.A., M.O.), Nagoya; and Nagoya City Higashi Municipal Hospital (T.T.), Nagoya, Japan.