[1] Chang Gung Univ, Coll Med, Sch Nursing, Taoyuan, Taiwan
[2] Chang Gung Univ, Hlth Aging Res Ctr, Taoyuan, Taiwan
[3] Chang Gung Mem Hosp, Div Endocrinol & Metab, Dept Internal Med, Linkou Branch, Taoyuan, Taiwan
[4] Chang Gung Univ, Dept Hlth Care, Coll Management, Taoyuan, Taiwan
[5] Taipei Med Univ, Coll Oral Med, Sch Oral Hyg, Taipei, Taiwan
[6] Kainan Univ, Dept Hlth Ind Management, Taoyuan, Taiwan
[7] Natl Taiwan Univ, Sch Nursing, Coll Med, 1 Jen Ai Rd Sect 1, Taipei 10051, Taiwan
[8] Natl Taiwan Univ Hosp, Dept Nursing, Taipei, Taiwan
[9] Natl Taiwan Univ, Dept Family Med, Coll Med, Taipei, Taiwan
[10] Natl Taiwan Univ Hosp, Dept Family Med, Bei Hu Branch, Taipei, Taiwan
[11] Taipei Vet Gen Hosp, Dept Internal Med, Div Endocrinol & Metab, Taipei, Taiwan
[12] Natl Yang Ming Chiao Tung Univ, Sch Med, Dept Med, Taipei, Taiwan
[13] Natl Taiwan Univ, Coll Publ Hlth, Inst Epidemiol & Prevent Med, Tampere, Finland
[14] Univ Tampere, Tampere Sch Publ Hlth, Tampere, Finland
[15] Natl Taiwan Univ, Coll Med, Sci Nursing, Taipei, Taiwan