Table 3. Cox regression for overall survival.
| Variable | N=58 (%) | Overall survival |
||
|---|---|---|---|---|
| Odds ratio | 95% CI | P value | ||
| Univariate analysis | ||||
| Group | 3.677 | 1.595-8.476 | 0.002 | |
| Local residue | 38 (65.5) | |||
| Disseminated pM1a | 20 (34.5) | |||
| Gender | 1.590 | 0.794-3.183 | 0.191 | |
| Male | 36 (62.1) | |||
| Female | 22 (37.9) | |||
| Age, years | 0.488 | 0.242-0.986 | 0.046 | |
| ≤60 | 32 (55.2) | |||
| >60 | 26 (44.8) | |||
| EGFR mutation | 0.884 | 0.203-3.844 | 0.869 | |
| Yes | 23 (39.7) | |||
| No | 31 (53.4) | |||
| unknown | 4 (6.9) | |||
| Pathologic type | 0.402 | 0.200-0.808 | 0.011 | |
| ADC | 40 (69.0) | |||
| Non-ADC | 18 (31.0) | |||
| N status | 0.118 | 0.276-1.157 | 0.565 | |
| N0 | 24 (41.4) | |||
| N1 | 9 (15.5) | |||
| N2 | 24 (41.4) | |||
| N3 | 1 (1.7) | |||
| Multivariate analysis | ||||
| Group | 2.746 | 1.028-7.340 | 0.044 | |
| Local residual | 38 (65.5) | |||
| Disseminated pT4M1a | 20 (34.5) | |||
CI, confidence interval; EGFR, epidermal growth factor receptor; ADC, adenocarcinoma.