. Author manuscript; available in PMC: 2010 Dec 1.

Published in final edited form as: Osteoarthritis Cartilage. 2009 Jun 26;17(12):1562–1569. doi: 10.1016/j.joca.2009.06.006

Table 4.

Associations of non-weight-bearing pain with maximal BML score, effusion score and synovitis score.

	Prevalence of knee pain (non-weight- bearing pain)	Univariate Analysis (RR of knee pain)	Multivariate Analysis (RR of knee pain)^*
Max BML Score
0	3/14 (21.4%)	Referent	Referent
1	8/47 (17.0%)	0.8	0.8
2	11/36 (30.6%)	1.4	1.3
3	22/63 (34.9%)	1.6	1.5
		*p for trend* = *0.06*	*p for trend* = *0.15*

Effusion Score
0	5/26 (19.2%)	Referent	Referent
1	13/62 (21.0%)	1.1	1.0
2	18/55 (32.7%)	1.7	1.6
3	8/17 (47.1%)	2.5	2.1
		*p for trend* = *0.02*	*p for trend* = *0.04*

Synovitis Score
0	2/7 (28.6%)	Referent	Referent
1	22/79 (27.9%)	1.0	0.7
2	16/54 (29.6%)	1.0	0.8
3	4/20 (20.0%)	0.7	0.6
		*p for trend* = *0.65*	*p for trend* = *0.55*

Multivariate analysis results were adjusted for the other two MRI features