Table 2.
Univariate analysis of the patient survival according to the clinicopathologic characteristics
| Variables | Number | Median overall survival (months) | P-value |
|---|---|---|---|
| Sex | <0.001 | ||
| Male | 1,325 | 9.8 | |
| Female | 604 | 12.8 | |
| Age | 0.078 | ||
| ≥65 | 771 | 10.2 | |
| <65 | 1,160 | 11.7 | |
| Smoking history | <0.001 | ||
| Yes | 998 | 9.2 | |
| No | 933 | 12.3 | |
| Histology | 0.002 | ||
| Adenocarcinoma | 1,046 | 11.5 | |
| Others | 885 | 10.0 | |
| TNM stage | <0.001 | ||
| M1a | 124 | 11.2 | |
| M1b | 1,807 | 9.8 | |
| PS | <0.001 | ||
| 0–1 | 1,374 | 12.4 | |
| ≥2 | 557 | 8.5 | |
| D-dimer | <0.001 | ||
| Normal | 1,393 | 11.5 | |
| High | 538 | 8.8 |
Abbreviation: PS, performance status.