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Table 2 Univariate and multivariate analyses for overall survival (OS) of NSCLC patients

From: Prognostic role of the ABO blood types in Chinese patients with curatively resected non-small cell lung cancer: a retrospective analysis of 1601 cases at a single cancer center

Variable Median OS (months) Univariate analysis Multivariate analysis
HR (95% CI) P value HR (95% CI) P value
Age
 ≥55 years vs. <55 years 67.8 vs. 72.2 1.08 (0.93–1.25) 0.32
Gender
 Males vs. females 66.5 vs. 76.6 1.17 (1.01–1.37) 0.04 1.03 (0.82–1.28) 0.82
ECOG PS score
 1 vs. 0   0.97 (0.90–1.04) 0.36
Smoking status
 Ever vs. never 64.1 vs. 75.8 1.19 (1.03–1.37) 0.02 1.22 (1.06–1.40) 0.01
Pathology
 Squamous vs. non-squamous 71.4 vs. 69.1 1.00 (0.87–1.16) 0.98
pT category
 3/4 vs. 1/2 31.0 vs. 79.1 2.06 (1.76–2.41) <0.01 1.61 (1.35–1.91) <0.01
pN category
 ≥N1 vs. N0 39.5 vs. NA 2.89 (2.51–3.33) <0.01 2.42 (1.95–3.00) <0.01
pTNM stage
 III vs. I–II 34.6 vs. NA 2.83 (2.46–3.25) <0.01 1.44 (1.16–1.76) 0.01
Surgery type
 Pneumonectomy vs. others 28.2 vs. 72.5 1.80 (1.41–2.30) <0.01 1.24 (0.96–1.60) 0.11
Chemotherapy
 No vs. yes 57.9 vs. 83.8 1.36 (1.19–1.57) <0.01 1.31 (1.12–1.53) <0.01
Blood type
 Group 2 vs. group 1 61.5 vs. 74.9 1.20 (1.04–1.38) 0.01 1.37 (1.10–1.70) <0.01
  1. CI confidence interval, HR hazard ratio, NA not available. Other abbreviations as in Table 1