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Table 5 Predictive probabilities of being a short term and longer term responder: radiographs and MRI features

From: Structural predictors of response to intra-articular steroid injection in symptomatic knee osteoarthritis

  Probability  
Overall KL maximal gradea 0 1 2 3 4   
 Short term predicted probabilityb 0.87d 0.83d 0.78 0.71 0.64   
 Longer term predicted probability 0.69d 0.49d 0.29 0.15 0.07   
Overall JSN maximal scorec 0 1 2 3    
 Short term predicted probabilityb 0.82 0.77 0.72 0.66    
 Longer term predicted probability 0.38 0.27 0.18 0.12    
Menisci maximal WORMS 0 1 2 3 4 5 6
 Short term predicted probability 0.72 0.70 0.69 0.68 0.67 0.66 0.64
 Longer term predicted probability 0.28 0.22 0.18 0.14 0.10 0.08 0.06
  1. KL Kellgren-Lawrence, JSN joint space narrowing, WORMS Whole Organ Magnetic Resonance Imaging Score; amaximal KL grade of the tibiofemoral or patellofemoral joint; btrend not statistically significant; cmaximal JSN score of the lateral or medial tibiofemoral or patellofemoral joint; dvalues based on modelling