Prognostic factors of radiation dermatitis following passive-scattering proton therapy for breast cancer

Radiation Oncology

Table 2 AUC values from LOOCV in predicting grade 3 radiation dermatitis

Metric	Parameter	AUC	95% CI
Single parameter	(a) D10cm³	0.69	0.51	0.92
Single parameter	(b) V52.5CGE	0.70	0.51	0.92
Two-parameter metric 1(c)	breast volume + D10cm³	0.72	0.52	0.93
Two-parameter metric 2 (d)	breast volume + V52.5CGE	0.73	0.51	0.94
Two-parameter metric 3 (e)	history of smoking+D10cm³	0.75	0.57	0.94
Two-parameter metric 4 (f)	history of smoking+V52.5CGE	0.83	0.63	0.96

The dose and volume parameters are related to skin5mm
Abbreviations: AUC area under the curve, CGE cobalt gray equivalent, CI confidence interval

ISSN: 1748-717X