Table 3.

Correlation between patient parameters and acute skin toxicity

Correlation to grade ≥2 toxicity	Odds ratio	p	95% confidence interval
Former or active smoker	4.09	0.08	0.86–22.89
High blood pressure	0.62	0.58	0.08–3.13
Phototype	0.55	0.49	0.07–2.77
Chemotherapy	1.56	0.61	0.31–11.68
Body mass index	1.91	0.10	0.89–4.53
Breast size	1.10	0.10	0.98–1.25
Bra cup size	3.46	0.02	1.29–11.92
Lymph node treatment	1.69	0.50	0.35–8.31
Skin-to-xiphoid distance	1.02	0.95	0.45–2.18
Nipple-to-pectoral muscle distance on the healthy side (mm)	2.21	0.07	0.97–5.98
Nipple-to-pectoral muscle distance on the treated side	2.07	0.10	0.89–5.38
Skin-to-spinous process distance	1.37	0.42	0.62–8.26
Left axillary fat thickness	2.72	0.04	1.08–8.26
Right axillary fat thickness	2.45	0.05	0.99–7.27