Factors | Model 1 | Model 2 | Model 3 | Model 4 | ||||
---|---|---|---|---|---|---|---|---|
Adjusted HRa (95% CI) | P | Adjusted HRa (95% CI) | P | Adjusted HRa (95% CI) | P | Adjusted HRa (95% CI) | P | |
En-bloc technique | Â | Â | Â | Â | Â | Â | Â | Â |
 No | Reference |  |  |  | Reference |  |  |  |
 Yes | 0.444 (0.291–0.678) | < 0.001 |  |  | 0.624 (0.398–0.978) | 0.040 |  |  |
EOR | Â | Â | Â | Â | Â | Â | Â | Â |
 SMR |  |  | Reference |  | Reference |  |  |  |
 TR |  |  | 3.070 (1.985–4.747) | < 0.001 | 2.660 (1.687–4.196) | < 0.001 |  |  |
Interaction effect | Â | Â | Â | Â | Â | Â | Â | Â |
 No-en-bloc technique + TR |  |  |  |  |  |  | Reference |  |
 En-bloc technique + TR |  |  |  |  |  |  | 0.712 (0.535–0.947) | 0.020 |