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Table 4 Median scores, interquartile range for secondary outcome variables

From: Efficacy of a progressive walking program and glucosamine sulphate supplementation on osteoarthritic symptoms of the hip and knee: a feasibility trial

   Week
   0 6 12 18 24 6-24
Arthritis self-efficacy measures         
   Pain 25 th 45.00 53.50 58.50 60.50 70.00 z 2.64
  Median 55.00 69.00a 72.00 71.00 80.00d P 0.01
  75 th 72.00 75.50 86.00 90.00 91.50 r 0.35
   Function 25 th 58.89 68.61 72.50 74.17 73.61 z 1.91
  Median 74.44 79.44 86.67 88.33 88.89 P 0.06
  75 th 89.44 89.72 94.72 92.22 94.17 r 0.26
   Other symptoms 25 th 43.75 57.08 70.42 73.33 78.75 z -2.96
  Median 61.67 68.33a 78.33b 83.33 85.83d P <0.001
  75 th 80.00 86.25 87.92 89.58 90.00 r 0.40
Correlates of physical activity measures
   Self-regulation 25 th 23.25 19.50 34.00 33.38 30.75 z 3.69
  Median 30.00 27.00 38.00b 39.00 39.00 P <0.001
  75 th 34.00 36.50 45.00 48.25 47.25 r 0.49
   Self-efficacy 25 th 2.40 2.40 2.65 2.80 2.45 z 1.79
  Median 2.80 3.00 3.10b 3.20 3.30 P 0.07
  75 th 3.20 3.35 3.55 3.60 3.75 r 0.24
   Benefits 25 th 53.00 53.25 54.25 53.00 53.00 z -0.69
  Median 56.00 56.00 57.00 56.00 54.50 P 0.49
  75 th 62.50 63.00 65.00 64.00 64.25 r 0.09
   Barriers 25 th 0.87 0.78 0.62 0.48 0.48 z -2.57
  Median 1.48 1.04a 1.02 0.86 0.98 P 0.01
  75 th 2.03 1.63 1.46 1.55 1.47 r 0.34
Anxiety and depression (Goldberg) 25 th 4.25 1.25 2.00 2.00 1.00 z -1.73
  Median 6.00 5.00 4.00 5.00 3.00 P 0.08
  75 th 8.75 7.75 5.75 6.00 5.75 r 0.23
Weight (kg) 25 th 69.25 69.88 72.00 69.38 69.00 z -1.57
  Median 79.50 80.00 81.00b 79.25c 79.50d P 0.11
  75 th 95.50 97.00 94.00 89.13 91.75 r 0.21
  1. Note. Z scores, P-values and effect sizes (r) for changes between Weeks 6 and 24 are shown in the right hand column.
  2. a Week 6 significantly different from Week 0.
  3. b Week 12 significantly different from Week 6.
  4. d Week 24 significantly different from Week 18.
  5. r = Effect size.