TABLE 1.
Characteristics of 2,230 Included Patients
| Patient Characteristic | No. (%) |
|---|---|
| Sex | |
| Female | 852 (38.2) |
| Male | 1,378 (61.8) |
| Cancer type | |
| Melanoma | 842 (37.8) |
| Lung | 608 (27.3) |
| Genitourinary | 365 (16.4) |
| Other | 490 (22.0) |
| Drug class | |
| PD-1 | 1,348 (60.4) |
| PD-L1 | 201 (9.0) |
| CTLA-4 | 440 (19.7) |
| PD-1 + CTLA-4 | 236 (10.6) |
| PD-L1 + CTLA-4 | 5 (0.2) |
| Traditional chemotherapy before ICI | 1,340 (60.1) |
| Smoking history | |
| Current or former smoker | 1,169 (52.4) |
| Never-smoker | 774 (34.7) |
| Unknown | 287 (12.9) |
| Age at first ICI, years, median (IQR) | 63 (54-70) |
NOTE. Details on the categorization of cancer diagnoses into cancer types can be found in the Data Supplement.
Abbreviation: ICI, immune checkpoint inhibitor.