Parameter estimates for linear growth model of fatigue
| Est | SE | z | P value* | 95% CI | ||
| Lower | Upper | |||||
| Fixed effects (intercept, slopes) | ||||||
| Intercept (level at week 1) | 5.36 | 0.56 | 9.62 | <0.001 | 4.10 | 6.37 |
| Time (weeks)† | 0.13 | 0.03 | 4.02 | <0.001 | 0.07 | 0.19 |
| Random effects ((co-)variances) | ||||||
| Level 2 (between person) | ||||||
| Intercept | 12.61 | 3.36 | 3.69 | 0.0003 | 7.48 | 21.25 |
| Time (weeks) | 0.038 | 0.011 | 3.37 | 0.0008 | 0.021 | 0.068 |
| Intercept and time | −0.38 | 0.18 | 2.30 | 0.021 | −0.71 | −0.06 |
| Level 1 (within person) | ||||||
| Residual | 2.76 | 0.18 | 15.65 | <0.001 | 2.43 | 3.13 |
N=53. Wald Χ2 (df1)=16.13, p=0.0001, LR test vs linear model Χ2 673.26, p<0.0001.
*All p values are two tailed with exception of variances (conventional one tailed).
†Time is coded 0=week 1, with equal intervals of unit 1 for each additional week, max 24 weeks.