Kwan, Joseph Shiu-KwongJoseph Shiu-KwongKwanDr. LAU Hi Po, BoboBoboDr. LAU Hi PoCheung, Karen Siu LanKaren Siu LanCheung2024-04-102024-04-102015Journal of the American Medical Directors Association, 2015, vol. 16(6), pp. 536.e1-536.e7.1525-86101538-9375http://hdl.handle.net/20.500.11861/9373Objectives A better understanding of the essential components of frailty is important for future developments of management strategies. We aimed to assess the incremental validity of a Comprehensive Model of Frailty (CMF) over Frailty Index (FI) in predicting self-rated health and functional dependency amongst near-centenarians and centenarians. Design Cross-sectional, community-based study. Setting Two community-based social and clinical networks. Participants One hundred twenty-four community-dwelling Chinese near-centenarians and centenarians. Measurements Frailty was first assessed using a 32-item FI (FI-32). Then, a new CMF was constructed by adding 12 items in the psychological, social/family, environmental, and economic domains to the FI-32. Hierarchical multiple regressions explored whether the new CMF provided significant additional predictive power for self-rated health and instrumental activities of daily living (IADL) dependency. Results Mean age was 97.7 (standard deviation 2.3) years, with a range from 95 to 108, and 74.2% were female. Overall, 16% of our participants were nonfrail, 59% were prefrail, and 25% were frail. Frailty according to FI-32 significantly predicted self-rated health and IADL dependency beyond the effect of age and gender. Inclusion of the new CMF into the regression models provided significant additional predictive power beyond FI-32 on self-rated health, but not IADL dependency. Conclusions A CMF should ideally be a multidimensional and multidisciplinary construct including physical, cognitive, functional, psychosocial/family, environmental, and economic factors.enPeer Reviewed Journal Article10.1016/j.jamda.2015.03.005