Table 8.

Comparison between participants with and without neuropathic-like pain symptoms on mechanical testing: Pressure and punctate pain at the most painful knee and ipsilateral nonknee sites

		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)
Pressure, kPa
Medial joint line index knee	32/150	257.1 (114.3)	277.0 (142.4)	281.2 (114.3)	271.9 (142.4)	279.7 (114.3)	272.2 (142.4)
Lateral joint line index knee	32/149	310.2 (154.4)	299.0 (150.1)	333.2 (154.4)	294.0 (150.1)	340.6 (154.4)	292.5 (150.1)
Quadriceps	32/150	344.4 (155.3)	361.9 (186.8)	358.2 (155.3)	361.8 (186.8)	358.3 (155.3)	361.0 (186.8)
Trapezius	32/150	218.5 (93.4)	252.4 (149.8)	244.9 (93.4)	246.8 (149.8)	247.7 (93.4)	246.2 (149.8)
Punctate
Punctate temporal summation at patella	32/151	26.0 (20.5)	16.1 (16.7)**	26.9 (20.5)	15.9 (16.7)**	23.8 (20.5)	16.6 (16.7)*
Punctate temporal summation dorsal hand	32/151	20.6 (16.5)	11.0 (12.9)**	19.8 (16.5)	11.2 (12.9)**	18.0 (16.5)	11.6 (12.9)*
Conditioned pain modulation
Prepressure pain threshold	31/148	237.1 (127.2)	255.5 (143.9)	256.2 (127.2)	251.5 (143.9)	251.6 (127.2)	252.4 (143.9)
During-pressure pain threshold	27/129	312.8 (175.6)	351.0 (188.5)	338.7 (175.6)	345.5 (188.5)	346.0 (175.6)	344.0 (188.5)
Conditioned pain modulation	27/128	80.1 (95.1)	91.1 (109.2)	90.4 (95.1)	88.9 (109.2)	98.7 (95.1)	87.2 (109.2)

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; NP = neuropathic-like pain; partially adjusted = covariates were site, age, education, race group, and body mass index; unadjusted = no covariates were included in analyses.

^* P < 0.05; **P < 0.01.