Relative risk of receiving a disability pension (WAO) according to baseline factors during 32 months of follow up
| CIS fatigue score quartiles (cut off points) | Crude relative risk (95% CI) | Adjusted* relative risk (95% CI) |
|---|---|---|
| Cox proportional hazard model relative risks. | ||
| *Adjusted for age, gender, educational level, and presence of a chronic condition. | ||
| †Reference group. | ||
| 1st quartile (=38 ) | 1† | 1† |
| 2nd quartile (>38, =54) | 2.44 (1.33 to 4.50) | 2.17 (1.17 to 4.03) |
| 3rd quartile (>54, =74) | 4.21 (2.16 to 8.18) | 3.30 (1.67 to 6.52) |
| 4th quartile (>74) | 18.9 (7.81 to 46.1) | 12.8 (5.14 to 32.1) |