Table 1. Multivariable Cox Proportional Hazard Interval-Censored Regression Analysis of Factors Associated with Overall Survival in Patients With Extensive-Stage Small Cell Lung Cancer.
| Variable | Events, No./patients, No. | HR (95% CI) | P value |
|---|---|---|---|
| Age, y | |||
| 40-59 | 227/231 | 1 [Reference] | .67 |
| ≥ 60 | 1292/1327 | 0.97 (0.83-1.12) | |
| Eastern Cooperative Oncology Group performance status | |||
| 0 | 281/288 | 1 [Reference] | <.001 |
| 1-5 | 1238/1270 | 1.35 (1.18-1.54) | |
| Treatment | |||
| Cisplatin | 1 [Reference] | 1 [Reference] | .54 |
| Carboplatin | 1171/1204 | 0.96 (0.83-1.10) |
Abbreviation: HR, hazard ratio.