Table 1. Cohort Characteristics.
| Characteristic | Patients, No. (%) (N = 1929) |
|---|---|
| Age at diagnosis, ya | |
| Mean (SD) | 28 (8) |
| Median (IQR) | 30 (23-35) |
| Sexa | |
| Female | 1049 (54.5) |
| Male | 875 (45.5) |
| Race | |
| American Indian or Alaska Native | 5 (0.3) |
| Asian | 227 (11.8) |
| Black or African American | 157 (8.1) |
| Native Hawaiian or Other Pacific Islander | 14 (0.7) |
| White | 1184 (61.4) |
| More than 1 race | 11 (0.6) |
| Not documented | 293 (15.2) |
| Otherb | 38 (2.0) |
| Ethnicity | |
| Hispanic or Latino | 514 (26.6) |
| Not Hispanic or Latino | 762 (39.5) |
| Not documented | 653 (33.9) |
| Primary cancer sitea | |
| Bone or soft tissue | 264 (13.7) |
| Brain | 170 (8.8) |
| Breast | 265 (13.8) |
| Gastrointestinal tract | 369 (19.2) |
| Genitourinary tract | 214 (11.1) |
| Head, neck, or thyroid | 72 (3.7) |
| Leukemia | 164 (8.5) |
| Lung | 85 (4.4) |
| Lymphoma | 119 (6.2) |
| Melanoma or skin | 67 (3.5) |
| Other | 136 (7.1) |
| Stage at diagnosisa | |
| I-III | 1119 (67.6) |
| IV | 537 (32.4) |
| Site of care | |
| DFCI | 703 (36.4) |
| KPNC | 526 (27.3) |
| KPSC | 700 (36.3) |
Abbreviations: DFCI, Dana-Farber Cancer Institute; KPNC, Kaiser Permanente Northern California; KPSC, Kaiser Permanente Southern California.
a
Missing data: age at cancer diagnosis, n = 37; sex, n = 5; primary cancer site, n = 4; stage, n = 273.
b
Other races included declined to state and unknown.