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Table 2 Cox proportional hazards model analysis of variables affecting survival in NSCLC patients
| Variables | Categories | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|---|
| HR (95% CI) | P-value | HR (95% CI) | P-value | ||
| Age (years) | ≥60/<60 | 1.330 (0.88-2.01) | 0.178 | ||
| Sex | Male/female | 0.835 (0.51-1.37) | 0.473 | ||
| Smoking history | Smoking/Non-smoking | 0.887 (0.58-1.37) | 0.588 | ||
| Histological type | Squamous/adenocarcinoma | 1.341 (0.89-2.02) | 0.160 | ||
| Grade of differentiation | Poor/well + moderate | 2.578 (1.70-3.90) | <0.001 | 1.814 (1.19-2.78) | 0.006 |
| pTNM stage | I/II/ III/IV | 2.331 (1.79-3.05) | <0.001 | 2.132 (1.61-2.82) | <0.001 |
| NOK expression | Positive/negative | 2.121 (1.25-3.59) | 0.005 | 1.731 (1.02-2.94) | 0.043 |
