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Table 4 Subgroups of co-existing MRI lesions and knee pain on joint loading

From: Co-existing patterns of MRI lesions were differentially associated with knee pain at rest and on joint loading: a within-person knee-matched case-controls study

  Knee pain on joint loading
Pain with walking Pain on stairs
Subgroups Control knee Case knee OR (95% CI) Control knee Case knee OR (95% CI)
I. Minimal lesions 16 11 1.0 (Reference) 19 15 1.0 (Reference)
II. Mild lesions 15 14 1.7 (0.5, 6.1) 16 10 0.9 (0.3, 3.3)
III. Moderate morphological lesions 45 21 0.7 (0.2, 2.3) 44 27 0.8 (0.3, 2.5)
IV. Moderate multiple reactive lesions 24 37 5.0 (1.4, 18.6) 30 34 2.4 (0.7, 7.4)
V. Severe lesions 16 33 7.8 (2.0, 31.5) 15 38 6.6 (1.8, 23.9)
  P for test of homogeneity = 0.001 P for test of homogeneity = 0.003
  1. OR Odds ratio, CI Confidence interval
  2. Figures are numbers unless stated otherwise