[1] Natl Cheng Kung Univ, Dept Publ Hlth, Coll Med, Tainan 701, Taiwan
[2] China Med Univ, Dept Publ Hlth, Coll Publ Hlth, Taichung 404, Taiwan
[3] Asia Univ, Dept Healthcare Adm, Coll Med & Hlth Sci, Taichung 413, Taiwan
[4] Univ Airlangga, Fac Publ Hlth, Dept Epidemiol, Surabaya 60115, Indonesia
[5] Taipei Med Univ Hosp, Dept Phys Med & Rehabil, Taipei 110, Taiwan
[6] Taipei Med Univ, Coll Nursing, Master Program Long Term Care, Taipei 110, Taiwan
[7] Taipei Med Univ, Coll Nursing, Sch Gerontol Hlth Management, Taipei 110, Taiwan
[8] Taipei Med Univ, Grad Inst Clin Med, Coll Med, Taipei 110, Taiwan
[9] Taipei Med Univ Hosp, Ctr Evidence Based Med, Taipei 110, Taiwan