. Author manuscript; available in PMC: 2019 Jan 1.

Published in final edited form as: Int J Radiat Oncol Biol Phys. 2017 Sep 4;100(1):107–114. doi: 10.1016/j.ijrobp.2017.08.039

Table 5.

Multivariate logistic regression analysis of effect of DRS on grade 2 or higher esophageal and pulmonary toxicity.

	Esophagitis, grade 2+		Lung toxicity, grade 2+
	Estimate	P	Estimate	P
Concurrent Chemotherapy	17.470	0.99	−0.556	0.50
Mean Dose (per 10 Gy)	0.104	0.73	7.291	0.04
DRS* Mean Dose (per 10 Gy BED and per 1 std. dev. in DRS)	−0.0494	0.60	−0.483	0.41

Gy = gray. DRS = Dose Response Score. Std. Dev. = standard deviation. BED = biologic effective dose.