[1] Natl Taiwan Univ Hosp, Dept Geriatr & Gerontol, Taipei, Taiwan
[2] Natl Taiwan Univ Hosp, Dept Internal Med, Taipei, Taiwan
[3] Natl Taiwan Univ Hosp, Superintendent Off, Chu Tung Branch, Zhubei City, Hsin Chu County, Taiwan
[4] Natl Hlth Res Inst, Inst Populat Hlth Sci, Div Biostat & Bioinformat, 35 Keyan Rd, Zhunan 35053, Miaoli County, Taiwan
[5] China Med Univ, Grad Inst Biostat, Coll Publ Hlth, Taichung, Taiwan
[6] Natl Taiwan Univ Hosp, Chu Tung Branch, Dept Internal Med, Zhubei City, Hsin Chu County, Taiwan
[7] Natl Taiwan Univ Hosp, Dept Orthoped Surg, Taipei, Taiwan
[8] Natl Taiwan Univ, Sch & Grad Inst Phys Therapy, Coll Med, Taipei, Taiwan
[9] Natl Taiwan Univ Hosp, Dept Family Med, Taipei, Taiwan
[10] Natl Hlth Res Inst, Inst Populat Hlth Sci, Div Gerontol, Taipei, Taiwan
[11] Natl Hlth Res Inst, Inst Populat Hlth Sci, Div Clin Trial Stat, Zhunan, Taiwan
[12] Taipei Med Univ, Shuang Ho Hosp, Dept Psychiat, New Taipei, Taiwan
[13] Natl Hlth Res Inst, Inst Populat Hlth Sci, Div Mental Hlth & Addict Med, Zhunan, Taiwan
[14] Natl Taipei Univ Nursing & Hlth Sci, Coll Nursing, Dept Nursing, Taipei, Taiwan
[15] Taipei Med Univ, Ctr Evidence Based Med, Taipei, Taiwan
[16] Natl Hlth Res Inst, Inst Populat Hlth Sci, Zhunan, Taiwan