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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.