Table 3.
Subgroup analysis of overall survival with various factors
| Parameter | n (%) | Median overall survival (95% CI) in months | P |
|---|---|---|---|
| Patients | 21 (100) | 21.0 (NR) | |
| Age | |||
| ≤65 | 13 (61.9) | NR | 0.529 |
| >65 | 8 (38.1) | 21 | |
| Gender | |||
| Male | 17 (81) | 21 (NR) | 0.94 |
| Female | 4 (19) | 9 (NR) | |
| Tumor stage | |||
| III | 7 (33.3) | 21 (NR) | 0.272 |
| IVA | 10 (47.6) | 9 (1.8-16.4) | |
| IVB | 4 (19) | 8 (NR) | |
| Performance status | |||
| ECOG - 1 | 14 (66.7) | 21 (NR) | 0.49 |
| ECOG - 2 | 7 (33.3) | 21 (NR) | |
| T stage | |||
| T2 | 4 (19) | 21 (NR) | 0.29 |
| T3 | 7 (33.3) | NR | |
| T4 | 10 (47.6) | 9 (NR) | |
| N stage | |||
| N1 | 4 (19) | 21 (NR) | 0.045 |
| N2 | 13 (61.9) | NR | |
| N3 | 4 (19) | 4 (0-9.2) |
NR=Denotes not reached, ECOG=Eastern Cooperative Oncology Group, CI=Confidence interval