| Significance of t-test for each WOMAC subgroup factor and means for each subgroup | ||||
---|---|---|---|---|---|
 | Physical | Pain | Stiffness | ||
Subgroup factor | Â | Knee | Hip | Knee | Hip |
Age | 0.07 | 0.85 | 0.002 | 0.20 | 0.03 |
 Younger (<=70.88) |  18.80 |  5.72 |  4.69 |  2.39 |  2.02 |
 Older (>70.88) |  20.88 |  5.79 |  3.44 |  2.59 |  1.63 |
Gender | 0.14 | 0.12 | 0.08 | 0.35 | 0.12 |
 Male |  19.11 |  5.49 |  3.72 |  2.44 |  1.68 |
 Female |  20.76 |  6.08 |  4.42 |  2.60 |  1.96 |
Social Class | <0.0005 | <0.0005 | 0.04 | 0.006 | 0.17 |
 Higher |  17.86 |  5.23 |  3.72 |  2.35 |  1.71 |
 Lower |  23.04 |  6.73 |  4.59 |  2.80 |  1.96 |
Townsend | 0.001 | 0.002 | 0.31 | 0.13 | 0.43 |
 Less Deprived |  18.14 |  5.26 |  3.88 |  2.41 |  1.76 |
 More Deprived |  21.97 |  6.42 |  4.29 |  2.66 |  1.90 |
Employed | <0.0005 | 0.007 | 0.22 | 0.004 | 0.41 |
 Paid work |  15.46 |  5.10 |  3.73 |  2.19 |  1.72 |
 Not paid work |  22.33 |  6.17 |  4.25 |  2.69 |  1.88 |
Mood | <0.0005 | 0.001 | <0.0005 | 0.003 | <0.0005 |
 No anxiety |  17.76 |  5.44 |  3.51 |  2.38 |  1.55 |
 Moderate/Extreme |  25.78 |  6.81 |  5.63 |  2.90 |  2.52 |
BMI | <0.0005 | <0.0005 | <0.0005 | <0.0005 | 0.003 |
 <30 |  16.26 |  4.96 |  3.45 |  2.18 |  1.61 |
 >30 |  25.65 |  7.21 |  5.12 |  3.04 |  2.16 |
Number of joints | 0.17 | 0.78 | 0.005 | 0.67 | 0.001 |
 1 or 2 |  18.03 |  5.64 |  5.04 |  2.40 |  2.34 |
 3 or 4 |  19.76 |  5.76 |  3.67 |  2.47 |  1.62 |
Hip only v Knee only | 0.77 | n/a | n/a | n/a | n/a |
 Hip |  18.18 |  n/a |  n/a |  n/a |  n/a |
 Knee |  18.69 |  n/a |  n/a |  n/a |  n/a |