Table 6.

Multivariate analysis for grades 3-4 late subcutaneous toxicity in the whole series of patients (n = 26)

	HR	(95% CI)	P
Whole series
Age	1.044	(0.986-1.106)	0.139
Received dose	1.138	(1.003-1.291)	0.045
Bra size	1.073	(1.004-1.147)	0.038
Systemic treatment	1.155	(0.199-6.697)	0.873
Low DSB-High RIA 1Gy	0.223	(0.073-0.678)	0.008
Low DSB-High RIA 2Gy	0.206	(0.063-0.677)	0.009
Low DSB-High RIA 8Gy	0.239	(0.062-0.929)	0.039

Abbreviations: HR = hazard ratio; CI = confidence interval