Olga Theou|Matthew O’Connell|Bellinda L. King?Kallimanis|Aisling O’Halloran|Kenneth Rockwood|Rose Anne Kenny
Measuring frailty using self-report and test-based health measures
Dalhousie University|Trinity College Dublin|Trinity College Dublin|Trinity College Dublin|Dalhousie University|Trinity College Dublin|St. James's Hospital
previously frailty indices constructed using mostly subjective health measures reporting error type measure implications robustness frailty findingsto examine whether frailty assessment differs construct frailty indices using solely selfreported testbased health measuressecondary analysis data irish longitudinal study ageing tilda4961 irish residents mean age 619 84 542 women age 50 years underwent health assessment included analysis constructed three frailty indices using 33 selfreported health measures srfi 33 testbased health measures tbfi 66 measures combined cfi 2year followup outcomes examined allcause mortality disability hospitalisation fallsall three indices rightskewed distribution upper limit frailty nonlinear increase age doseresponse relationship adverse outcomes levels frailty lower selfreported items used srfi 012 009 tbfi 017 015 cfi 014 013 men slightly higher frailty index scores women testbased measures used men 017 009 women 016 010 cfi strongest prediction risk adverse outcomes roc 064081 age significant predictor included regression modelexcept sex differences characteristics frailty similar regardless whether selfreported testbased measures used exclusively construct frailty index available selfreported testbased measures combined trying identify levels frailty