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Table 3 Comparisons of change in SF-36 Physical and Mental Components Summaries (PCS and MCS) [23] between exercise and control group.

From: Six-week high-intensity exercise program for middle-aged patients with knee osteoarthritis: a randomized controlled trial [ISRCTN20244858]

Short Form-36 item (SF-36) [22] Exercise group Control group
   mean 95%CI mean 95%CI p*
Physical Component Summary (PCS) Baseline 42.5 24.4 – 57.5 43.8 24.2 – 57.3 0.49
  Change at 6 weeks 3.0 -5.9 – 13.4 0.3 -15.2 – 12.6 0.13
  Change at 6 months 3.0 -5.9 – 16.3 -0.7 -14.8 – 9.8 0.09
Mental Component Summary (MCS) Baseline 55.6 40.2 – 66.2 56.3 37.0 – 67.0 0.63
  Change at 6 weeks 1.6 -10.6 – 15.0 -2.1 -16.9 – 11.5 0.04
  Change at 6 months 0.7 -18.1 – 13.2 -0.7 -16.8 – 12.8 0.40
  1. * Comparison between groups