Table 1 Basic characteristics of all patients and univariate survival analysis.
Variables | Cases, N | Proportion, % | Median OS, months (95% CI) | P value b |
|---|---|---|---|---|
Age, years | 59 (23-82)a | 0.049 | ||
Gender | ||||
Male | 316 | 86.1 | 16.7(14.75-18.65) | 0.077 |
Female | 51 | 13.9 | 18.7(11.61-27.39) | |
Smoking | ||||
Smoker | 302 | 82.3 | 16.8(14.69-18.91) | 0.917 |
Never-smoker | 65 | 17.7 | 16.0(12.61-19.33) | |
Disease stage | ||||
Limited stage | 180 | 49.0 | 22.1(17.10-27.10) | <0.001 |
Extensive stage | 187 | 51.0 | 14.2(11.61-16.72) | |
PS | ||||
0 | 195 | 53.1 | 17.0(15.01-19.06) | <0.001 |
1 | 142 | 38.7 | 18.7(16.14-21.20) | |
2 | 30 | 8.2 | 9.3(7.94-10.73) | |
CRP/Alb | ||||
≥0.441 | 128 | 34.9 | 13.7(11.86-15.61) | 0.005 |
<0.441 | 239 | 65.1 | 18.9(16.93-20.87) | |
LDH, U/L | ||||
Normal range | 220 | 59.9 | 19.2(17.52-20.89) | <0.001 |
Abnormally elevated | 147 | 40.1 | 13.3(11.06-15.61) | |
Chemotherapy regimen | ||||
Etoposide-based | 315 | 85.8 | 17.2(15.34-19.13) | 0.685 |
Others | 52 | 14.2 | 13.2(7.31-19.16) | |
Prophylacticcranial irradiation | 0.361 | |||
Yes | 81 | 22.1 | 16.2(12.85-19.55) | |
No | 286 | 77.9 | 17.0(15.08-18.99) | |
