Table 3 Subgroups of co-existing MRI lesions and knee pain at rest

Subgroups

Control knee

Case knee

OR (95% CI)

Control knee

Case knee

OR (95% CI)

I. Minimal lesions

13

7

1.0 (Reference)

16

8

1.0 (Reference)

II. Mild lesions

14

8

1.6 (0.3, 7.3)

14

4

1.1 (0.2, 5.6)

III. Moderate morphological lesions

29

22

2.2 (0.5, 9.5)

31

20

3.1 (0.7, 14.4)

IV. Moderate multiple reactive lesions

22

28

6.2 (1.3, 29.6)

20

31

14.4 (2.5, 81.7)

V. Severe lesions

14

27

11.2 (2.1, 59.2)

13

31

28.9 (4.5, 184.0)