Age and sex adjusted risk ratios (95% CI) for withdrawal from labour force in ankylosing spondylitis (AS) compared with the general Dutch population
| Male AS patients | Female AS patients | All AS patients | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Observed | Expected | RR (95% CI) | Observed | Expected | RR (95% CI) | Observed | Expected | RR (95% CI) | |||
| <25 years | 3 | 0.36 | 8.3 (1.7 to 24.3) | 1 | 0.24 | 4.2 (0.1 to 23.3) | 4 | 0.59 | 6.7 (1.8 to 17.1) | ||
| 25–34 years | 31 | 5.28 | 5.9 (4.0 to 8.3) | 9 | 4.66 | 1.9 (0.9 to 3.7) | 40 | 9.94 | 4.0 (2.9 to 5.5) | ||
| 35–44 years | 27 | 7.52 | 3.6 (2.4 to 5.2) | 12 | 5.53 | 2.2 (1.1 to 3.8) | 39 | 13.05 | 3.0 (2.1 to 4.1) | ||
| 45–54 years | 23 | 8.19 | 2.8 (1.8 to 4.2) | 6 | 2.58 | 2.3 (0.4 to 5.1) | 29 | 10.77 | 2.7 (1.8 to 3.9) | ||
| ⩾55 years | 2 | 2.03 | 0.98 (0.1 to 3.6) | 0 | 0.30 | — | 2 | 2.33 | 0.85 (0.1 to 3.1) | ||
| All patients | 86 | 23.38 | 3.7 (2.9 to 4.4) | 28 | 13.32 | 2.1 (1.4 to 3.0) | 114 | 36.69 | 3.1 (2.5 to 3.7) | ||
RR = standardised risk ratios.