Univariable and multivariable Cox regression analysis
| Variable . | HR (univariable) . | 95% CI . | P value (likelihood ratio) . | HR (multivariable) . | 95% CI . | P value (χ2) . |
|---|---|---|---|---|---|---|
| BRCA1/2+ | 18.9 | 4.1-85.2 | .0013 | 15.2 | 3.2-71.4 | .0006 |
| Age at BC surgery | 1.08 | 0.9-1.2 | .07 | 1.07 | 0.99-1.2 | .1 |
| Year of surgery | 0.99 | 0.8-1.2 | .96 | |||
| Silicone vs saline filling | 0.94 | 0.2-4.3 | .94 | |||
| Bilateral implants | 3.93 | 0.4-32.7 | .14 | |||
| Previous chemotherapy | 0.95 | 0.2-4.2 | .95 | |||
| Previous RT | 0.37 | 0.04-3.1 | .31 | |||
| Infiltrating carcinoma | 0.19 | 0.04-0.8 | .03 | 0.21 | 0.04-0.9 | .05 |
| Ductal carcinoma vs lobular | 0.75 | 0.15-3.8 | .73 |
| Variable . | HR (univariable) . | 95% CI . | P value (likelihood ratio) . | HR (multivariable) . | 95% CI . | P value (χ2) . |
|---|---|---|---|---|---|---|
| BRCA1/2+ | 18.9 | 4.1-85.2 | .0013 | 15.2 | 3.2-71.4 | .0006 |
| Age at BC surgery | 1.08 | 0.9-1.2 | .07 | 1.07 | 0.99-1.2 | .1 |
| Year of surgery | 0.99 | 0.8-1.2 | .96 | |||
| Silicone vs saline filling | 0.94 | 0.2-4.3 | .94 | |||
| Bilateral implants | 3.93 | 0.4-32.7 | .14 | |||
| Previous chemotherapy | 0.95 | 0.2-4.2 | .95 | |||
| Previous RT | 0.37 | 0.04-3.1 | .31 | |||
| Infiltrating carcinoma | 0.19 | 0.04-0.8 | .03 | 0.21 | 0.04-0.9 | .05 |
| Ductal carcinoma vs lobular | 0.75 | 0.15-3.8 | .73 |