Table 2.
Characteristics of eligible registry cohort and continuously enrolled cohort at time of cancer diagnosisa
| Registry, No. (%) (N = 672 377) | Continuously enrolled, No. (%) (n = 317 898) | Private, No. (%) (n = 38 681) | Medicaid, No. (%) (n = 62 614) | Medicare part A, B, or C, No. (%) (n = 254 054) | Medicare parts A, B, or C and D, No. (%) (n = 178 611)b | |
|---|---|---|---|---|---|---|
| Sex | ||||||
| Male | 338 139 (50.3) | 159 919 (50.3) | 18 905 (48.9) | 25 893 (41.4) | 130 059 (51.2) | 87 811 (49.2) |
| Female | 334 154 (49.7) | 157 939 (49.7) | 19 776 (51.1) | 36 721 (58.6) | 123 960 (48.8) | 90 771 (50.8) |
| Other or unknown | 84 (0.0) | 40 (0.0) | —c | —c | 35 (0.0) | 29 (0.0) |
| Age, y | ||||||
| Birth to 14 | 5083 (0.8) | 1141 (0.4) | 311 (0.8) | 813 (1.3) | 16 (0.0) | 13 (0.0) |
| 15-39 | 36 700 (5.5) | 6558 (2.1) | 3257 (8.4) | 2924 (4.7) | 723 (0.3) | 600 (0.4) |
| 40-64 | 297 543 (44.3) | 72 196 (22.7) | 30 987 (80.1) | 24 160 (38.6) | 25 794 (10.2) | 19 640 (11.0) |
| ≥65 | 333 051 (49.5) | 238 003 (74.9) | 4126 (10.7) | 34 717 (55.5) | 227 521 (89.6) | 158 358 (88.7) |
| Race or ethnicity | ||||||
| Hispanic | 11 793 (1.8) | 2815 (0.9) | 463 (1.2) | 1125 (1.8) | 1708 (0.7) | 1234 (0.7) |
| Non-Hispanic Black | 129 787 (19.3) | 59 182 (18.6) | 4367 (11.3) | 25 037 (40.0) | 44 560 (17.5) | 32 616 (18.3) |
| Non-Hispanic White | 502 426 (74.7) | 244 373 (76.9) | 32 319 (83.6) | 33 168 (52.9) | 199 106 (78.4) | 138 365 (77.5) |
| Other or unknown | 28 371 (4.2) | 11 528 (3.6) | 1532 (4.9) | 3284 (5.2) | 8680 (3.4) | 6396 (3.6) |
a
Insurance type frequencies are not mutually exclusive because individuals may be covered by multiple payers.
b
Includes only those cases diagnosed after inception of Medicare Part D (January 1, 2006).
c
Cell sizes <11 are suppressed to protect privacy and have been added to the “Female” category.