Table 1.

Descriptive statistics for age and raw Frailty Index at each wave in LBC1936.

	N	Mean	SD	Range
Wave 1
Frailty Index	1005	0.16	0.09	0–0.49
Age	1005	69.58	0.83	67.66–71.35
Wave 2
Frailty Index	800	0.18	0.09	0–0.55
Age	800	72.55	0.71	71.96–74.21
Wave 3
Frailty Index	649	0.20	0.09	0.02–0.65
Age	649	76.30	0.68	74.64–77.75
Wave 4
Frailty Index	514	0.21	0.09	0.03–0.63
Age	514	79.38	0.62	78.1–80.93
Wave 5
Frailty Index	402	0.22	0.09	0.03–0.58
Age	402	82.06	0.54	80.98–83.19