Table 3.

Results of Pearson’schi-square comparative analysis for acute and late toxicity.

	ACUTE		EARLY DELAYED
	Breast dermatitis	Breast edema	Breast edema	Boost hyperpigmentation	Boost induration
	p	p	p	p	p
Age: <56 vs > 56 yo	0.337	0.081	0.082	0.226	0.340
mPTVWBI:<725 cm vs. > 725 cm	0.028	0.301	0.80	0.846	0.989
mPTVBOOST: <28 cm vs. < 28 cm	0.439	0.623	0.105	0.007	0.168
Ratio PTVBOOST/PTVWBI: <0.4 vs. > 0.4	0.495	0.869	0.496	0.042	0.220
Chemotherapy: yes vs. no	0.688	0.484	0.378	0.101	0.871
Endocrine therapy: yes vs. no	0.891	0.934	0.792	0.826	0.987
Radiation technique: 3D vs. VMAT	0.794	0.990	0.565	0.984	0.996
Postoperative breast seroma: yes vs. no	0.933	0.943	0.390	0.885	0.998