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. Author manuscript; available in PMC: 2013 Oct 1.
Published in final edited form as: Osteoarthritis Cartilage. 2012 Jun 12;20(10):1120–1126. doi: 10.1016/j.joca.2012.05.013

Table 1.

Percent of knees with each WORMS score at baseline

Case-control study of cartilage worsening (N= 38 knees) Case-control study of BML worsening (N= 38 knees)
Control (N=82 subregions) Case (N=70 subregions) Control (N=100 subregions) Case (N=52 subregions)
Cartilage Morphology Score 0 74.4 27.1 68.0 23.1
2 9.8 7.1 9.0 7.7
2.5 2.4 7.1 3.0 7.7
3 9.8 32.9 12.0 36.5
4 1.2 10.0 5.0 5.8
5 2.4 12.9 2.0 17.3
6 0.0 2.9 1.0 1.9
BML Score 0 91.5 60.0 87.0 57.7
1 6.1 34.3 9.0 38.5
2 2.4 5.7 4.0 3.9