Table 5

Cox regression models on DMARD retention rates

Predictor
Beta (SE)
HR (95% CI)
P

Re-employment (reference category: original course)
-0.45 (0.21)
0.64 (0.42–0.97)
0.04
MTX dose (per each 2.5 mg/week dose increment)
-0.03 (0.02)
0.97 (0.93–1.00)
0.06
Employment 1999 or later (reference category: 1998 or earlier)
0.49 (0.26)
1.63 (0.97–2.73)
0.06

In total, 172 were evaluated patients. CI, confidence interval; DMARD, disease-modifying antirheumatic drug; HR, hazard ratio; MTX, methotrexate; SE, standard error.

Kapral et al. Arthritis Research & Therapy 2006 8:R46   doi:10.1186/ar1902