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Table 3 Summary of WOMAC 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)
Pain 79 69 73 43 42 41 43 42 35
31.15 ± 14.29 26.81 ± 14.92 30.30 ± 16.47 24.65 ± 15.78 25.32 ± 15.98 25.00 ± 19.44 23.60 ± 15.09 26.16 ± 17.97 23.50 ± 17.78
    (0.572) (0.238) (0.522) (0.863) (0.157) (0.096)
Stiffness 79 69 71 44 41 40 43 42 35
38.90 ± 18.01 36.41 ± 18.90 39.08 ± 19.81 30.96 ± 22.31 30.79 ± 19.58 28.43 ± 20.41 29.94 ± 20.43 31.40 ± 20.75 27.14 ± 18.80
    (0.125) (0.405) (0.486) (0.494) (0.423) (0.890)
Physical Function 79 68 72 44 38 40 43 42 35
28.16 ± 15.41 27.65 ± 18.22 26.89 ± 16.34 24.48 ± 13.79 25.27 ± 15.70 25.06 ± 13.53 18.20 ± 14.63 24.15 ± 17.24 19.40 ± 17.08
    (0.672) (0.903) (0.763) (0.582) (0.381) (0.140)
Total WOMAC Score 79 68 70 43 41 40 43 42 35
29.70 ± 14.09 28.27 ± 16.42 28.95 ± 15.28 21.05 ± 13.62 23.60 ± 13.61 22.32 ± 17.77 20.30 ± 13.97 25.58 ± 16.60 20.90 ± 16.74
     (0.612) (0.475) (0.821) (0.464) (0.129) *(0.019)
  1. W: Walking only group; WB: Walking and Behavioural Group; C: Self-directed group (unsupervised/self-directed); N: number of subjects in each comparative group; SD: standard deviation; vs: versus; data is presented as mean (standard deviation); P: p-value (statistical significance); * Statistically significant; WOMAC: Western Ontario MacMaster Osteoarthritis Index.