Table 4.

Comparison between participants with and without neuropathic-like pain symptoms on clinical variables

		Unadjusted		Partially Adjusted		Fully Adjusted
		NP (N = 32)	Non-NP (N = 152)	NP (N = 32)	Non-NP (N = 152)	NP (N = 32)	Non-NP (N = 152)
Characteristics	n/N	M (SD)	M (SD)	M (SD)	M (SD)	M (SD)	M (SD)
WOMAC
Pain	32/151	12.6 (3.3)	6.9 (3.8)**	11.7 (3.3)	7.1 (3.8)**	10.0 (3.3)	7.4 (3.8)**
Stiffness	32/151	5.5 (1.7)	2.9 (1.7)**	5.1 (1.7)	3.0 (1.7)**	4.5 (1.7)	3.1 (1.7)**
Physical function	32/152	40.1 (11.4)	22.0 (13.3)**	36.7 (11.4)	22.7 (13.3)**	30.2 (11.4)	24.1 (13.3)**
GCPS
Disability score (0–100)	32/152	75.3 (23.2)	42.5 (28.3)**	68.7 (23.2)	43.8 (28.3)**	55.0 (23.2)	46.7 (28.3)
Chronic pain grade	31/151
Grade I: low disability–low intensity		0	57
Grade II: low disability–high intensity		4	35
Grade III: high disability–moderately limiting		14	41
Grade IV: high disability–severely limiting		13	18
Short-Form McGill Pain Questionnaire–2
Continuous	31/147	6.5 (1.6)	2.9 (2.3)**	6.0 (1.6)	3.1 (2.3)**	4.8 (1.6)	3.3 (2.3)**
Intermittent	31/145	6.3 (1.7)	2.2 (2.1)**	5.8 (1.7)	2.3 (2.1)**	5.0 (1.7)	2.5 (2.1)**
Neuropathic	28/148	4.7 (2.0)	1.2 (1.6)**	4.3 (2.0)	1.3 (1.6)**	3.8 (2.0)	1.4 (1.6)**
Affective	31/148	5.6 (2.3)	1.7 (2.2)**	5.1 (2.3)	1.8 (2.2)**	4.3 (2.3)	1.9 (2.2)**
Total score	28/145	5.7 (1.5)	2.0 (1.8)**	5.2 (1.5)	2.1 (1.8)**	4.4 (1.5)	2.3 (1.8)**

Fully adjusted = included all partially adjusted covariates (site, age, education, race group, body mass index), in addition to the Graded Chronic Pain Scale pain intensity; GCPS = Graded Chronic Pain Scale; NP = neuropathic-like pain; partially adjusted = covariates were site, age, education, race group, and body mass index; unadjusted = no covariates were included in analyses; WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index.

^** P < 0.01.