. 2018 Sep 21;11:6167–6175. doi: 10.2147/OTT.S174561

Table S1.

Results of multivariate analyses

	Parameters	OR (95% CI)	P-value

Model 1	Gender (female vs male^a)	2.39 (1.17, 4.88)	0.016^b
	CCRT (yes vs no^a)	3.35 (1.20, 9.35)	0.021^b
	Maximum radiation position (per 1 subsite upper)	1.64 (1.10, 2.44)	0.015^b
	V₁₀ (per 10% increase)	1.35 (1.11, 1.64)	0.003^b
Model 2	Gender (female vs male^a)	2.30 (1.12, 4.73)	0.023^b
	CCRT (yes vs no^a)	3.32 (1.19, 9.29)	0.022^b
	Maximum radiation position (per 1 subsite upper)	1.64 (1.03, 2.30)	0.037^b
	V₂₀ (per 10% increase)	1.35 (1.13, 1.60)	0.001^b
Model 3	Gender (female vs male^a)	2.27 (1.11, 4.69)	0.026^b
	CCRT (yes vs no^a)	3.86 (1.33, 11.14)	0.013^b
	Maximum radiation position (per 1 subsite upper)	1.50 (1.02, 2.24)	0.045^b
	V₃₀ (per 10% increase)	1.38 (1.16, 1.63)	<0.001^b
Model 4	Gender (female vs male^a)	2.36 (1.14, 4.88)	0.020^b
	CCRT (yes vs no^a)	3.93 (1.36, 11.32)	0.011^b
	Maximum radiation position (per 1 subsite upper)	1.56 (1.05, 2.34)	0.029^b
	V₄₀ (per 10% increase)	1.37 (1.16, 1.61)	<0.001^b
Model 5	Gender (female vs male^a)	2.43 (1.18, 5.01)	0.016^b
	CCRT (yes vs no^a)	3.88 (1.35, 11.15)	0.012^b
	Maximum radiation position (per 1 subsite upper)	1.70 (1.13, 2.54)	0.011^b
	V₅₀(per 10% increase)	1.37 (1.16, 1.63)	<0.001^b
Model 6	Gender (female vs male^a)	2.32 (1.12, 4.81)	0.024^b
	CCRT (yes vs no^a)	5.04 (1.61, 15.75)	0.005^b
	Maximum radiation position (per 1 subsite upper)	1.99 (1.29, 3.07)	0.002^b
	V₆₀ (per 10% increase)	1.58 (1.25, 1.97)	<0.001^b

Notes:

Reference category.

Statistically significant. V₁₀–V₆₀, percentage of esophageal volume receiving at least 10–60 Gy.

Abbreviation: CCRT, concurrent chemoradiotherapy.