Table 3.
Multivariate stepwise regression
| Variable | Parameter Estimator | (SE) | P-value |
|---|---|---|---|
| Intercept | 329.7 | (64.13) | |
| 6MWT | -0.30 | (0.08) | 0.000 |
| TPs | -7.43 | (2.85) | 0.010 |
| Group | -26.6 | (10.14) | 0.012 |
Independent variables are: Age, education, group, attendance rate, number of TPs, pain localisation, pain duration, baseline values of the HAD-A, the HAD-D, the FIQ total score, the LTPAI total score and the 6MWT. The dependent variable is change of the 6MWT.
6MWT, Six-Minute Walk Test; TP, tender point; HAD-A, Hospital Anxiety and Depression - Anxiety; HAD-D, Hospital Anxiety and Depression - Depression; FIQ, Fibromyalgia Impact Questionnaire; LTPAI, Leisure Time Physical Activity Instrument; SE, standard error.