Table 4.

Association of Neuromuscular Impairment Burden With Fall Rates Over 3 Years, Stratified by High and Low Pain

	High Pain		Low Pain
	N = 143	IRR (95% CI)	N = 222	IRR (95% CI)
Neuromuscular impairment burden
0	45	Ref.	95	Ref.
1	49	1.11 (0.60–2.07)	82	0.66 (0.42–1.01)
2	32	0.55 (0.27–1.11)	31	1.41 (0.79–2.52)
3	17	5.73 (2.46–13.34)a	14	0.74 (0.31–1.77)
p-value		<.0001		.34

Note: CI = confidence interval; IRR = incidence rate ratio. Adjusted for age, sex, and race. High pain: Brief Pain Inventory ≥3. Low pain: Brief Pain Index <3.

^a95% CI excludes 1.