. Author manuscript; available in PMC: 2016 Apr 1.

Published in final edited form as: Int J Radiat Oncol Biol Phys. 2015 Feb 7;91(5):1048–1056. doi: 10.1016/j.ijrobp.2014.11.030

Table 4.

Comparison of single-feature performance to distinguish patients with RP compared with a classifier composed of each 2- or 3-feature combination

No. of features/dose-dependent measurement	Mean AUC (range)

	Low dose	Medium dose	High dose	Fitted slope
1 Feature	0.64 (0.49–0.72)	0.68 (0.49–0.77)	0.71 (0.52–0.78)	0.71 (0.50–0.78)
2 Features	0.66 (0.59–0.74)	0.71 (0.59–0.78)	0.73 (0.59–0.78)	0.74 (0.59–0.84)
3 Features	0.66 (0.59–0.75)	0.72 (0.59–0.79)	0.72 (0.60–0.79)	0.75 (0.61–0.83)

Abbreviations: AUC = area under the receiver operating characteristic curve; RP = radiation pneumonitis.