multivariate analysis modelling the risk of disability status at 5 years
| Patients not in disability at 5 years | Patients in disability at 5 years | Model a | Model b | Model c | |
|---|---|---|---|---|---|
| n=275 | n=56 | OR [95% CI] | OR [95% CI] | OR [95% CI] | |
| Baseline factors | |||||
| Age (mean) | 45.0 | 49.1 | 1.05 [1.00; 1.09] | 1.04 [1.00; 1.09] | NS |
| Ever smoker (%) | 47.3 | 66.1 | 2.36 [1.21; 4.59] | 3.14 [1.54; 6.39] | 2.34 [1.19; 4.59] |
| Higher education (%) | 34.5 | 8.9 | 0.32 [0.12; 0.90] | 0.28 [0.10; 0.78] | 0.28 [0.10; 0.77] |
| DAS28 (mean) | 4.95 | 5.79 | NS | 1.36 [1.02; 1.82] | NS |
| SF-36 MCS score (mean) | 40.9 | 33.8 | 0.94 [0.91; 0.97] | 0.95 [0.92; 0.99] | 0.95 [0.92; 0.98] |
| SF-36 PCS score (mean) | 37.9 | 32.9 | 0.94 [0.90; 0.98] | NS | 0.94 [0.90; 0.98] |
| Low disease activity during the first year of follow up | |||||
| At least 1 DAS28 <3.2 (%) | 61.0 | 39.0 | – | 0.17 [0.08; 0.33] | – |
| 2 DAS28 <3.2 (%) | 76.4 | 35.7 | – | 0.17 [0.06; 0.45] | |