Table 2: Prognostic factors identified by multivariate analysis showing a significant association with SDAI 50.

Achieved SDAI 50 Did not achieve SDAI 50 Odds ratio (95% CI) P
Disease duration (year) 4 (2-9) 4 (1-11) 0.942 (0.902-0.984) 0.0069
Smoking history (yes, %) 22 35 2.272 (1.064-4.850) 0.0339
TJC 7 (4-11) 6 (2.25-10) 0.899 (0.827-0.977) 0.0121
PHGA 65 (32-76) 48 (22.25-72) 1.029 (1.012-1.047)) 0.0009
ESR (mm/H) 38 (16-67) 21 (12-51) 1.015 (1.001-1.030) 0.0369

TJC, tender joint count PHGA, evaluator's global assessment ESR, erythrocyte sedimentation rate