Table 4.
Sensitivity analyses
| Fatigue (CFQ) | Physical function (SF-36 PF) | |
|---|---|---|
| Strict intention-to-treat analysis | ||
| n | 211 | 211 |
| Mean difference compared with control group (95% CI) | −4·0 (−5·9 to −2·1) | 6·3 (1·8 to 10·9) |
| p value | <0·0001 | 0·006 |
| Therapist effect | ||
| n | 199 | 199 |
| Mean difference compared with control group (95% CI) | −4·1 (−5·4 to −2·8) | 6·3 (2·7 to 9·9) |
| p value | <0·0001 | 0·001 |
| Met CDC criteria | ||
| n | 138 | 141 |
| Mean difference compared with control group (95% CI) | −4·1 (−6·5 to −1·7) | 6·3 (1·1 to 11·6) |
| p value | 0·001 | 0·019 |
| Met Oxford criteria | ||
| n | 156 | 159 |
| Mean difference compared with control group (95% CI) | −3·5 (−5·7 to −1·3) | 5·6 (0·8 to 10·4) |
| p value | 0·002 | 0·024 |
| Adjustment for covariates* | ||
| n | 199 | 199 |
| Mean difference compared with control group (95% CI) | −4·3 (−6·3 to −2·4) | 6·9 (2·2 to 11·6) |
| p value | <0·0001 | 0·004 |
CFQ=Chalder Fatigue Questionnaire. SF-36 PF=Short-Form 36 physical function subscale. CDC=US Centers For Disease Control and Prevention.
*
Adjusted for age, sex, ethnic origin, study centre, education level, employment status, high SF-36 PF (≥45), high depression (≥11), high anxiety (≥11), and baseline International Physical Activity Questionnaire Scores (low, medium, or high).