1. Department of Family Medicine Kaohsiung Municipal Ta‐Tung Hospital and Kaohsiung Medical University Hospital School of Medicine College of Medicine Kaohsiung Medical University Kaohsiung Taiwan
2. Department of Healthcare Information & Management School of Health Technology Ming Chuan University Taoyuan Taiwan
3. Department of Geriatrics and Gerontology National Cheng Kung University Hospital College of Medicine National Cheng Kung University Tainan Taiwan
4. Department of Public Health College of Medicine National Cheng Kung University Tainan Taiwan
5. Department of Social and Behavioral Sciences Harvard T.H. Chan School of Public Health Boston Massachusetts USA