Table 1.

Participant characteristics

	NP (n=24)	Non-NP (n=48)	P value
Demographics
Age (years), mean (SD)	64.5 (6.9)	65.7 (7.3)	0.491
BMI, mean (SD)	30.7 (5.9)	29.1 (6.2)	0.295
Female, n (%)	20 (83%)	38 (79%)	0.761*
Matching variables
KOOS pain, mean (SD)	50.8 (15.1)	49.8 (13.1)	0.777
SF-36 pain, mean (SD)	34.1 (22.8)	39.8 (16.8)	0.285

*Fisher’s exact test.

BMI, body mass index; KOOS, Knee injury and Osteoarthritis Outcome Score; non-NP, matched controls; NP, neuropathic pain; SF-36, Short form 36.