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Table 1 Summary of SF-36 for three study arms

From: The implementation of a community-based aerobic walking program for mild to moderate knee osteoarthritis: A knowledge translation randomized controlled trial: Part II: Clinical outcomes

Variables Baseline 12 Months 18 Months
W WB C W WB C W WB C
N N N N N N N N N
Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± Sd Mean ± SD Mean ± SD
    W Vs. C(P) WB Vs. C(P) WB Vs. W(P) W Vs. C(P) WB Vs. C(P) WB Vs. W(P)
Physical Functioning 79 69 74 44 43 41 44 42 36
63.003 ± 18.332 66.449 ± 19.157 67.275 ± 20.446 70.088 ± 18.819 68.127 ± 19.694 68.171 ± 26.381 68.157 ± 21.308 63.254 ± 25.705 75.694 ± 19.645
    (0.250) (0.982) (0.234) (0.836) *(0.012) *(0.015)
Role Physical 78 69 74 44 44 41 44 42 36
52.350 ± 40.064 69.203 ± 35.393 56.757 ± 39.755 61.742 ± 39.755 59.659 ± 41.138 65.854 ± 42.484 57.386 ± 40.556 60.119 ± 40.971 68.519 ± 39.345
    (0.909) (0.063) *(0.044) (0.864) (0.058) (0.071)
Pain Index 78 69 74 44 44 41 44 42 36
60.487 ± 16.040 67.348 ± 18.261 62.149 ± 18.762 63.818 ± 19.134 63.795 ± 20.124 67.805 ± 18.378 65.045 ± 18.881 61.167 ± 18.322 67.444 ± 18.315
    (0.581) *(0.026) (0.082) (0.491) *(0.030) *(0.003)
General Health Perceptions 79 68 74 44 44 41 44 42 36
67.873 ± 18.214 70.838 ± 20.465 70.635 ± 17.434 67.619 ± 17.484 68.926 ± 19.008 72.000 ± 18.358 69.307 ± 19.189 66.143 ± 20.483 69.917 ± 18.243
    (0.223) (0.089) (0.605) (0.226) (0.496) (0.051)
Vitality 79 68 74 44 44 41 44 42 36
58.481 ± 17.711 60.588 ± 21.152 60.473 ± 18.984 62.045 ± 19.628 60.341 ± 19.778 64.756 ± 18.267 60.152 ± 21.858 58.929 ± 18.791 66.157 ± 17.839
    (0.856) (0.475) (0.359) (0.845) (0.517) (0.380)
Social Functioning 79 69 74 44 44 41 44 42 36
80.380 ± 22.080 85.507 ± 18.394 82.432 ± 20.474 79.545 ± 22.889 84.375 ± 18.309 85.671 ± 20.264 78.125 ± 26.704 84.226 ± 19.533 79.167 ± 21.547
    (0.266) (0.168) (0.775) (0.232) (0.735) (0.379)
Role Emotional 78 69 74 44 44 41 44 42 36
75.214 ± 37.000 84.058 ± 29.488 74.324 ± 37.643 85.606 ± 30.835 81.061 ± 32.468 82.927 ± 35.057 75.000 ± 40.106 80.159 ± 31.286 82.407 ± 33.320
    (0.949) (0.170) (0.144) (0.597) (0.290) (0.574)
Mental Health Index 78 68 74 44 44 41 44 42 36
76.500 ± 17.558 77.588 ± 15.670 80.365 ± 13.974 78.364 ± 16.007 80.000 ± 14.823 81.366 ± 14.411 77.114 ± 17.926 77.405 ± 15.759 79.333 ± 14.890
    (0.735) (0.909) (0.822) (0.597) (0.880) (0.486)
Health Transition Item 79 69 74 43 43 41 44 42 36 2.639 ± 0.899
2.975 ± 0.987 3.014 ± 0.737 2.959 ± 0.818 2.419 ± 0.852 2.698 ± 0.914 2.463 ± 0.840 2.727 ± 0.924 3.024 ± 1.024 (0.459)
    (0.821) (0.564) (0.415) (0.832) (0.356)  
Standardized Physical Component 77 68 74 44 43 41 44 42 36
40.516 ± 8.598 43.645 ± 8.656 41.996 ± 9.100 42.508 ± 9.229 42.192 ± 10.066 43.464 ± 9.409 42.820 ± 9.240 40.909 ± 11.038 45.149 ± 8.930
    (0.804) (0.135) (0.074) (0.703) *(0.009) *(0.002)
Standardized Mental Component 77 68 74 44 43 41 44 42 36
52.914 ± 10.845 53.812 ± 8.639 53.556 ± 8.995 53.819 ± 9.852 54.476 ± 7.329 55.162 ± 8.540 51.993 ± 11.000 53.922 ± 9.023 53.101 ± 9.914
     (0.595) (0.436) (0.795) (0.688) (0.638) (0.937)