Table 2.

One-Year Clinically Meaningful Changes in Frailty Measures

Frailty Measures	Distribution-Based		Anchor- Based
	Small	Large	Small	Large
FI (38 items) (range: 0–1)*	0.019	0.049	0.030	0.076
FI (43 items) (range: 0–1)†	0.023	0.057	0.028	0.067
Frailty phenotype (range: 0–5)	0.249	0.623	0.097	0.607
FRAIL scale (range: 0–5)	0.235	0.587	0.269	0.368
SOF index (range: 0–3)	0.116	0.289	0.023	0.287

Note: FI = frailty index; FRAIL = Fatigue, Resistance, Ambulation, Illness, and Loss of weight; SOF = Study of Osteoporotic Fracture; SD = standard deviation.

*The 38-item FI was calculated from 38 self-reported items.

^†The 43-item FI was calculated from 38 self-reported items and 5 performance test items.