Table 5. Comparison of disease-specific survival (DSS) and overall survival (OS) between AAC vs IDC after breast subtype analyses by univariate cox proportional hazard model.
| Subtype | DSS | OS | ||||
|---|---|---|---|---|---|---|
| Events No./Sum No. | HR (95% CI) | P-Valuea | Events No./Sum No. | HR (95% CI) | P-Valuea | |
| HR+/HER2- | ||||||
| AAC | 2/51 | 4.110 (1.026–16.465) | 0.046 | 2/51 | 2.174 (0.543–8.702) | 0.272 |
| IDC | 724/72,454 | Reference | 1,363/72,454 | Reference | ||
| HR+/HER2+ | ||||||
| AAC | 0/22 | – | – | 0/22 | – | – |
| IDC | 129/12,268 | Reference | 231/12,268 | Reference | ||
| HR-/HER2+ | ||||||
| AAC | 1/42 | 0.907 (0.127–6.479) | 0.923 | 2/42 | 1.382 (0.343–5.562) | 0.649 |
| IDC | 163/5,472 | Reference | 213/5,472 | Reference | ||
| Triple negative | ||||||
| AAC | 2/136 | 0.203 (0.051–0.812) | 0.024 | 3/136 | 0.254 (0.082–0.787) | 0.018 |
| IDC | 860/13,837 | Reference | 1,039/13,837 | Reference | ||
AAC = apocrine adenocarcinoma, IDC = infiltrating ductal carcinoma, HER2 = human epidermal growth factor receptor 2, HR = hormone receptor, HR = hazard ratio, CI = confidence interval, DSS = disease-specific survival, OS = overall survival.
aP-value was determined by univariate Cox proportional hazard regression model.