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Table 3 Unadjusted and adjusted post-operative PROM scores by operation

From: Case-mix & patients' reports of outcome in Independent Sector Treatment Centres: Comparison with NHS providers

PROMs NHS ISTC Adjusted difference* 95% CI P-value
  Mean (SD) Mean (SD)    
EQ-5D      
   Cataract 0.77 (0.28) 0.84 (0.23) 0.03 0.009 to 0.06 0.01
   Hernia 0.85 (0.21) 0.84 (0.22) -0.02 -0.05 to 0.002 0.07
   Varicose vein 0.87 (0.20) 0.89 (0.19) 0.005 -0.03 to 0.04 0.8
   Hip 0.72 (0.26) 0.82 (0.20) 0.06 0.005 to 0.11 0.03
   Knee 0.70 (0.26) 0.76 (0.22) 0.03 -0.02 to 0.08 0.2
Disease-specific      
   Cataract (VF14) 92.3 (15.2) 96.2 (7.8) 2.6 0.97 to 4.2 0.005
   Hernia (PCS) 50.1 (9.6) 51.8 (10.5) 1.2 -0.52 to 2.9 0.2
   Varicose vein (AVVQ) 10.3 (9.0) 8.6 (7.9) 1.3 -3.1 to 0.49 0.5
   Hip (OHS) 23.9 (9.9) 20.5 (7.6) 2.4 -4.4 to -0.36 0.03
   Knee (OKS) 27.0 (9.3) 24.2 (8.8) 0.86 -3.7 to 2.0 0.5
  1. *positive adjusted differences indicate better post-operative scores for ISTC patients