Multivariate normal tissue complication probability modeling of gastrointestinal toxicity after external beam radiotherapy for localized prostate cancer

Table 3 Best-fitted regression coefficients for NTCP models and odds ratios (OR)

	Parameter	Estimated coefficient	SE	p-value	OR
Model 1
	V65 (%)	0.028	0.017	0.052	1.03
	Antihypertensive/anticoagulants	-1.442	0.669	0.031	0.24
	Acute GI toxicity	1.458	0.669	0.029	4.30
	constant	-1.283
Model 2
	V65 (%)	0.033	0.016	0.036	1.03
	constant	-1.702

ISSN: 1748-717X