Table 3.
Prognostic factors included in the final Cox proportional hazard model for prediction of 1-year survival of 545 patients with non-small cell lung cancer.
| Prognostic factor | No. of subjects | HR | 95% CI | P-value | |
|---|---|---|---|---|---|
| Age | <65 | 290 | 1.00 | ||
| ≥65 | 255 | 1.25 | 1.02–1.54 | 0.030 | |
| TNM Stage | I–II | 76 | 1.00 | ||
| III | 227 | 1.64 | 1.08–2.48 | 0.020 | |
| IV | 242 | 2.33 | 1.48–3.69 | <0.001 | |
| Lung lobectomy | Yes | 164 | 1.00 | ||
| No | 381 | 1.96 | 1.45–2.66 | <0.001 | |
| Chemotherapy | Yes | 282 | 1.00 | ||
| No | 263 | 1.42 | 1.15–1.74 | 0.001 | |
| Hemoglobin | NPHb | 423 | 1.00 | ||
| LPHb | 122 | 1.61 | 1.28–2.02 | <0.001 |
HR, hazard ratio by multivariate Cox proportional hazards regression; CI, confidence interval; TNM, tumor-node-metastasis; NPHb, normal pretreatment hemoglobin (men, 120–160 g/L; women, 110–150 g/L); LPHb, low pretreatment hemoglobin (men, <120 g/L; women, ≤110 g/L).