Table 1. Distribution of demographic variables and health measures by frailty status.

Measure	All (n = 2541)	Not frail (n = 1339)	Pre-frail (n = 924)	Frail (n = 278)	p
Age, mean	50.2	49.5	50.6	52.7	<0.001
Men, %	44	50	39	29	<0.001
African American, %	58	58	59	54	0.319
Below poverty, %	40	32	48	58	<0.001
BMI, mean	30.0	28.9	30.7	33.3	<0.001
HS graduate1, %	67	75	60	53	<0.001
Poor or fair health2, %	28	13	38	73	<0.001
Polypharmacy3, %	14	6	16	41	<0.001

¹High-school graduate or obtained GED, missing = 67

²Poor or fair (versus good, very good, or excellent) self-rated health from SF-12[16], missing = 1

³Reported taking six or more prescription medications at time of visit