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Table 2 Mean Scores of SF36 dimensions and clinical parameters before and after total hip or knee replacement surgery

From: Satisfaction with care after total hip or knee replacement predicts self-perceived health status after surgery

   After surgery
  Before surgery mean (SD) 1 mo mean (SD) 6 mo mean (SD) mean (SD) p*
SF-36      
   Physical functioning 36.1 (22) 39.2 (24) 56.6 (24) 59.1 (24) < .001
   Physical role 20.6 (32) 10.9 (24) 43.2 (42) 49.9 (42) < .001
   Bodily pain 33.6 (16) 53.1 (22) 59.9 (23) 61.0 (23) < .001
   Mental health 54.5 (19) 64.1 (20) 64.8 (20) 64.7 (19) < .001
   Emotional role 32.1 (41) 22.8 (38) 48.9 (46) 54.2 (44) < .001
   Social functioning 61.7 (23) 67.1 (25) 74.6 (23) 74.8 (23) < .001
   Vitality 38.8 (16) 48.5 18) 51.7 (18) 52.2 (19) < .001
   General health 54.7 (18) 62.6 (18) 60.9 (19) 60.6 (19) < .001
CLINICAL PARAMETERS      
   Pain level (VAS, 0-100 mm) 64.5 (17) 26.7 (20) 15.4 (17) 12.9 (16) < .001
   Harris score (0-100) 40.8 (13)   79.0 (11) 81.6 (13) < .001
   ISK** disease score (0-200) 100.0 (26)   165.9 (28) 173.0 (21) < .001
   Walking distance (m) 469 (342)   1908 (1752) 2021 (1730) < .001
  1. VAS = visual analog scale; ISK = Index of Severity for Knee
  2. * ANOVA with repeated measures