Table 3. Multivariable Cox analysis of prognostic factors for progression-free survival in the mutation analysis group.
| No. events/No. patients | HR [95% CI] | p-value | |
|---|---|---|---|
| Mutation groups | 0.003 | ||
| All wild-type | 41/50 | Ref | |
| EGFR/ALK+ | 10/11 | 2.0 [0.9 ; 4.2] | |
| Other mutation | 16/17 | 2.8 [1.5 ; 5.2] | |
| Performance status | 0.12 | ||
| 0 | 32/38 | Ref | |
| ≥ 1 | 35/40 | 1.5 [0.9 ; 2.5] | |
| Stage | 0.21 | ||
| IIIA | 39/47 | Ref | |
| IIIB | 28/31 | 1.4 [0.8 ; 2.4] | |
| Thoracic surgery | 0.82 | ||
| No | 52/60 | Ref | |
| Yes | 15/18 | 0.9 [0.5 ; 1.8] | |
| PET scan | 0.14 | ||
| No | 11/12 | Ref | |
| Yes | 56/66 | 0.6 [0.3 ; 1.2] |
HR = Hazard ratio; CI = Confidence interval; Ref = reference group.