Model 1 | Model 2** | ||
---|---|---|---|
Crude OR | Adjusted OR | ||
(95% CI) | (95% CI) | ||
Training practice | |||
No | 1 | 1 | |
Yes | 1.20 (1.06–1.36)* | 1.10 (0.97–1.25) | |
Single-handed practice | |||
Yes | 1 | 1 | |
No | 1.34 (1.16–1.55)* | 1.24 (1.09–1.40)* | |
Mean age of doctors (years) | |||
≤ 45 | 1 | 1 | |
45–49 | 0.94 (0.74–1.19) | 0.87 (0.66–1.14) | |
50–54 | 0.88 (0.70–1.09) | 0.78 (0.60–1.00) | |
55–59 | 0.68 (0.53–0.87)* | 0.58 (0.44–0.76)* | |
60–64 | 0.58 (0.43–0.79)* | 0.52 (0.39–0.70)* | |
≥65 | 0.41 (0.27–0.64)* | 0.33 (0.22–0.50)* |