Variable | Model 1 | Model 2 (forward selection) | ||
---|---|---|---|---|
OR | 95% CI | OR | 95% CI | |
3 months | ||||
Male | 0.63 | 0.19–2.12 | ||
Age, yrs | 0.99 | 0.93–1.05 | ||
Disease duration, yrs | 0.97 | 0.90–1.04 | ||
Nodules (+/−) | 1.58 | 0.50–5.02 | ||
Rheumatoid factor (+/−) | 0.83 | 0.24–2.87 | ||
DAS28 (per unit) | 0.89 | 0.51–1.54 | ||
HAQ (per unit) | 0.39 | 0.13–1.21 | ||
No. previous DMARD (per DMARD) | 1.57 | 1.12–2.18 | 1.52 | 1.10–2.08 |
Pack-year category (per category) | 1.95 | 1.11–3.46 | 1.98 | 1.34–3.13 |
Current smoker (+/−) | 1.01 | 0.32–3.24 | ||
12 months | ||||
Male | 1.25 | 0.54–2.86 | ||
Age, yrs | 1.01 | 0.98–1.04 | ||
Disease duration, yrs | 1.01 | 0.90–1.06 | ||
Nodules (+/−) | 0.62 | 0.27–1.39 | ||
Rheumatoid factor (+/−) | 0.97 | 0.41–2.26 | ||
DAS28 (per unit) | 0.97 | 0.64–1.44 | ||
HAQ (per unit) | 0.75 | 0.33–1.69 | ||
No. previous DMARD (per DMARD) | 1.27 | 1.01–1.61 | 1.23 | 1.00–1.53 |
Pack-year category (per category) | 1.57 | 1.05–2.37 | 1.65 | 1.18–2.30 |
Current smoker (+/−) | 1.81 | 0.72–4.51 |
DMARD: disease modifying antirheumatic drugs; DAS28: Disease Activity Score 28-joint count; HAQ: Health Assessment Questionnaire.