Table 1. Study Population Characteristics.
| Characteristic | No. (%)a | ||
|---|---|---|---|
| Total (n = 24 582) | Alive (n = 23 560) | Dead (n = 1022) | |
| Age, median (IQR), y | 64.6 (53.6-73.2) | 64.4 (53.3-73.0) | 69.7 (60.5-78.0) |
| Women | 15 319 (62.3) | 14 803 (62.8) | 516 (50.5) |
| Race/ethnicity | |||
| Non-Hispanic White | 18 015 (76.0) | 17 263 (76.0) | 752 (75.8) |
| Black | 3951 (16.7) | 3769 (16.6) | 182 (18.3) |
| Other | 1734 (7.3) | 1676 (7.4) | 58 (5.8) |
| Marital status | |||
| Married | 15 059 (61.3) | 14 451 (61.4) | 608 (59.6) |
| Unmarried | 9493 (38.7) | 9081 (38.6) | 412 (40.4) |
| Insurance | |||
| Medicare + managed Medicare | 12 244 (50.8) | 2409 (10.4) | 77 (7.8) |
| Medicaid + managed Medicaid | 1247 (5.2) | 7917 (34.2) | 201 (20.4) |
| Managed care | 8118 (33.7) | 1178 (5.1) | 69 (7.0) |
| Commercial insurance | 2486 (10.3) | 11 608 (50.2) | 636 (64.7) |
| ECOG performance status | |||
| 0 | 2822 (45.3) | 2785 (48.3) | 37 (8.0) |
| 1 | 2440 (39.2) | 2276 (39.5) | 164 (35.5) |
| ≥2 | 963 (15.5) | 702 (12.2) | 261 (56.5) |
| Elixhauser comorbidity score | |||
| 0-1 | 12 866 (52.3) | 12 695 (53.9) | 171 (16.7) |
| 2 | 4962 (20.2) | 4764 (20.2) | 198 (19.4) |
| ≥3 | 6754 (27.5) | 6101 (25.9) | 653 (63.9) |
| Cancer stage | |||
| I-III | 3028 (75.7) | 2934 (77.8) | 94 (40.9) |
| IV | 971 (24.3) | 835 (22.2) | 136 (59.1) |
| Practice site | |||
| Tertiary academic | 10 658 (43.4) | 10 136 (43.0) | 522 (51.1) |
| Breast | 1862 (11.0) | 1811 (11.3) | 51 (6.3) |
| Gastrointestinal tract | 1193 (7.1) | 1074 (6.7) | 119 (14.7) |
| Thoracic | 1060 (6.3) | 961 (6.0) | 99 (12.3) |
| Genitourinary | 1048 (6.2) | 1009 (6.3) | 39 (4.8) |
| Gynecologic | 1049 (6.2) | 1029 (6.4) | 20 (2.5) |
| Leukemia | 1062 (6.3) | 993 (6.2) | 69 (8.6) |
| Lymphoma | 1259 (7.5) | 1214 (7.6) | 45 (5.6) |
| Melanoma | 403 (2.4) | 381 (2.4) | 22 (2.7) |
| Myeloma | 1179 (7.0) | 1138 (7.1) | 41 (5.1) |
| Neuro-oncology | 355 (2.1) | 333 (2.1) | 22 (2.7) |
| General oncology | 13 924 (56.6) | 13 424 (57.0) | 500 (48.9) |
Abbreviations: ECOG, Eastern Cooperative Oncology Group; IQR, interquartile range.
a
Values are presented as No. (%) unless otherwise specified.