Variables | Reference category | β (SE) | OR(95% CI) | P-value | |
---|---|---|---|---|---|
Duration of disease (P = 0.006*) | < 1 years | > 3 years | 1.361 (0.478) | 3.901 (1.528 to 9.959) | 0.004* |
1–2 years | 0.882 (0.353) | 2.415 (1.210 to 4.821) | 0.012* | ||
2–3 years | 0.025 (0.373) | 1.025 (0.493 to 2.131) | 0.946 | ||
Smoking status | Smokers | Non-smokers | −0.705 (0.342) | 2.025 (1.036 to 3.956) | 0.039* |
Constant | −1.474(0.310) | < 0.001 |