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Published online 2013 Mar 28. doi: 10.1093/qjmed/hct061
Table 4
Associations of baseline characteristics with physical function (SF-36 physical function subscale) at follow-up (N = 834)a
| Characteristics | Mean change in physical function (95% CI) adjusted for year | P-value | Mean change in physical function (95% CI) adjusted for year and baseline physical function | P-value | Mean change in physical function (95% CI) adjusted for year and all variables in table | P-value |
|---|---|---|---|---|---|---|
| 10-year age group | −0.40 (−0.55 to −0.25) | <0.001 | −0.16 (−0.27 to −0.05) | 0.005 | −0.17 (−0.29 to −0.06) | 0.003 |
| Sex (female vs. male) | −0.67 (−1.12 to −0.23) | 0.003 | 0.002 (−0.34 to 0.33) | 0.99 | −0.10 (−0.43 to 0.24) | 0.57 |
| Chalder Fatigueb | −0.47 (−0.58 to −0.36) | <0.001 | −0.02 (−0.11 to 0.08) | 0.69 | 0.01 (−0.09 to 0.11) | 0.82 |
| SF-36 (physical function)b | 0.81 (0.75 to 0.87) | <0.001 | 0.81 (0.75 to 0.87) | <0.001 | 0.71 (0.64 to 0.79) | <0.001 |
| HADS anxietyb | −0.17 (−0.25 to −0.09) | <0.001 | −0.05 (−0.11 to 0.01) | 0.14 | 0.001 (−0.07 to 0.07) | 0.97 |
| HADS depressionb | −0.38 (−0.47 to −0.30) | <0.001 | −0.07 (−0.14 to 0.00) | 0.05 | −0.05 (−0.13 to 0.04) | 0.28 |
| Visual Analogue Painb | −0.41 (−0.47 to −0.34) | <0.001 | −0.11 (−0.17 to −0.05) | <0.001 | −0.11 (−0.17 to −0.05) | <0.001 |
| CBT/GET vs. Activity | 0.50 (0.13 to 0.88) | 0.008 | 0.15 (−0.13 to 0.43) | 0.28 | 0.15 (−0.13 to 0.42) | 0.30 |
aRandom-effects regression model with centre as unit of effect. bThe measures were re-scaled to range from 0 to 10, hence, a regression coefficient of 1 represents a 10% change in the score.
