. Author manuscript; available in PMC: 2012 Jul 1.

Published in final edited form as: Arthritis Rheum. 2011 Jul;63(7):1908–1917. doi: 10.1002/art.30360

Table 3.

Medial joint space width (JSW) and joint space narrowing (JSN) scores in signal knee at baseline and 24 months follow-up in knee OA patients with increased (OA^IL-1) versus normal (OA^nl) IL-1β expression in entire NYUHJD Validation Cohort and in patients with baseline JSW ≥3 mm.

	Mean (standard deviation)		p-value¹
Entire NYUHJD Validation Cohort	OA^IL-1 (n=33)	OA^nl (n=53)
JSW (mm) at baseline	3.87 (1.71)	2.14 (2.15)	0.0005
JSW (mm) at 24 months	3.10 (1.79)	2.01(2.10)	0.0259
Change (JSN)	0.77 (0.95)	0.15 (1.23)	0.0208
In patients with baseline JSW ≥3 mm	OA^IL-1 (n=25)	OA^nl (n=28)
JSW (mm) at baseline	4.67 (0.28)	4.25 (0.19)	0.142
JSW (mm) at 24 months	3.78 (0.35)	3.86 (0.24)	0.8203
Change (JSN)	0.89 (0.26)	0.38 (0.18)	0.0507