Research Article

Identification of a Ten-Gene Signature of DNA Damage Response Pathways with Prognostic Value in Esophageal Squamous Cell Carcinoma

Table 1

Univariable and multivariable Cox regression analyses to identify independent prognostic predictors in the GSE53625 cohorts.

CharacteristicsSizeUni-Cox analysisaMulti-Cox analysisbMulti-Cox analysis
HR (95% CI) valueHR (95% CI) valueHR (95% CI) value

Age
 ≥60 vs. <601791.58 (1.07–2.31)0.02401.43 (0.97–2.1)0.07091.57 (1.06–2.34)0.0235
Sex
 Male vs. female1790.78 (0.49–1.25)0.3070
Grade
 Moderately vs. well1301.01 (0.59–1.75)0.96200.78 (0.44–1.37)0.3810
 Poorly vs. well811.65 (0.93–2.96)0.09001.09 (0.60–1.99)0.7750
Stage
 II vs. I1792.15 (1.45–3.21)0.000152.26 (1.51–3.38)<0.00012.30 (1.51–3.51)0.00011
Location
 Middle vs. upper1170.68 (0.39–1.20)0.18500.64 (0.36–1.16)0.1400
 Lower vs. upper820.60 (0.33–1.11)0.10100.49 (0.26–0.95)0.0338
Tobacco
 Yes vs. no1790.75 (0.51–1.10)0.1450
Alcohol
 Yes vs. no1790.86 (0.59–1.27)0.4550
DRGS
 High vs. low1792.57 (1.75–3.77)<0.00012.67 (1.80–3.94)<0.00012.52 (1.69–3.75)<0.0001

a: variables in multi-Cox analysis were selected by ; b: variables in multi-Cox analysis were selected by and clinical expertise; HR: hazard ratio, CI: confidence interval, DRGS : DDR-related gene expression signature.