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. 2016 Mar 30;7(18):26670–26679. doi: 10.18632/oncotarget.8476

Table 4. Univariate of overall survival in esophageal carcinoma (groups).

Variable	Univariate analyses
Variable	HR	95% CI	P-value
Group 1	1.452	0.260-0.787	0.005^a
Group 2	1.701	1.229-2.356	0.001^a
Group 3	1.101	0.700-1.734	0.007^a
Group 4	0.954	0.541-1.680	0.009^a

Abbreviations: HR, hazard ratio; CI, confidence interval.

^a

P < 0.05.