Table 2 Univariate and multivariate Cox regressional analyses for prognostic factors of distant metastases-free survival in patients with localised resectable RIAS
From: Radiation induced angiosarcoma of the breast: outcomes from a retrospective case series
Variable | Univariate | Multivariate | ||
|---|---|---|---|---|
HR (95% CI) | p value | HR (95% CI) | p value | |
Age (years) | ||||
<70 | Reference | – | * | * |
≥70 | 1.06 (0.98–1.15) | 0.146 | * | * |
Positive margins | ||||
No | Reference | – | * | * |
Yes | 4.20 (1.12–15.67) | 0.033 | * | * |
Tumour size (cm) | ||||
<5 | Reference | – | Reference | – |
≥5 | 5.70 (1.18–27.50) | 0.030 | 5.70 (1.18–27.50) | 0.030 |
Treatment | ||||
Surgery | Reference | – | * | * |
Surgery + chemotherapy | 2.08 (0.46–9.51) | 0.344 | * | * |