A retrospective study: the prognostic value of anemia, smoking and drinking in esophageal squamous cell carcinoma with primary radiotherapy

Table 3 Cox multivariate analysis for 2-year survival in 79 patients

	Multivariate analysis
	2-year overall survival			2-year disease-free survival
	HR	95% CI	P	HR	95% CI	P
Hemoglobin (non-anemic vs anemic)	2.125	1.190-3.796	0.011	1.898	1.085-3.320	0.025
Smoking (no vs yes)	0.623	0.286-1.359	0.235	0.746	0.370-1.503	0.412
Drinking (no vs yes)	1.208	0.559-2.611	0.631	1.170	0.581-2.354	0.660
TNM stage (I vs II vs III vs IV)	1.722	1.231-2.409	0.001	1.653	1.205-2.267	0.002
Initial treatment(RT vs S + RT vs CRT vs S + CRT)	0.732	0.561-0.956	0.022	0.812	0.640-1.032	0.088

CI, confidence interval; CRT, chemoradiotherapy; HR, hazard ratio; RT, radiotherapy; S, surgery; TNM, tumor, lymph node, metastasis; vs, versus.

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