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Table 2 Cartilage damage index stratified by baseline medial joint space narrowing (JSN) grade

From: Development of a rapid knee cartilage damage quantification method using magnetic resonance images

 

Baseline medial JSN Grade

Cartilage measure

JSN = 0 (n = 43) mean (SD)

JSN = 1 (n = 31) mean (SD)

JSN = 2 (n = 25) mean (SD)

JSN = 3 (n = 3) mean (SD)

p-value for trend

 

Cross-sectional

Femur CDI (Baseline)

825.14 (148.42)

754.71 (125.54)

529.29 (130.35)

325.89 (324.51)

<0.01

Tibia CDI (Baseline)

352.29 (72.47)

328.96 (60.91)

233.45 (68.77)

95.83 (99.73)

<0.01

Tibiofemoral CDI (Baseline)

1177.40 (198.78)

1083.70 (173.17)

762.74 (183.50)

421.72 (420.65)

<0.01

 

Longitudinal

Femur CDI (Change)

−31.06 (46.40)

−49.67 (61.65)

−78.55 (66.81)

−185.4 (170.07)

<0.01

Tibia CDI (Change)

−12.17 (25.16)

−23.27 (33.83)

−46.18 (52.46)

−42.41 (41.07)

<0.01

Tibiofemoral CDI (Change)

−43.23 (57.65)

−72.94 (76.02)

−124.70 (97.47)

−227.80 (208.59)

<0.01

  1. Notes: change = follow-up minus baseline; SD = standard deviation.