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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 * *
  1. *Not included in model generated by forward stepwise combination