Table 1. Characteristics of the Study Population by Expansion Status Before and After Expansion.
| Characteristic | No. (%) of participantsa | ||||
|---|---|---|---|---|---|
| All (N = 21 069) | EXP states | NEXP states | |||
| Before expansion (n = 5387) | After expansion (n = 7849) | Before expansion (n = 3051) | After expansion (n = 4782) | ||
| Age, y | |||||
| <1 | 2071 (9.8) | 531 (9.9) | 701 (8.9) | 330 (10.8) | 509 (10.6) |
| 1-4 | 7427 (35.3) | 1930 (35.8) | 2762 (35.2) | 1083 (35.5) | 1652 (34.5) |
| 5-9 | 5463 (25.9) | 1388 (25.8) | 2091 (26.6) | 770 (25.2) | 1214 (25.4) |
| 10-14 | 6108 (29.0) | 1538 (28.6) | 2295 (29.2) | 868 (28.4) | 1407 (29.4) |
| Race/ethnicity | |||||
| Non-Hispanic white | 10 185 (48.3) | 2214 (41.1) | 3114 (39.7) | 1949 (63.9) | 2908 (60.8) |
| Non-Hispanic other | 1854 (8.8) | 516 (9.6) | 835 (10.6) | 181 (5.9) | 322 (6.7) |
| Non-Hispanic black | 2317 (11.0) | 371 (6.9) | 527 (6.7) | 553 (18.1) | 866 (18.1) |
| Hispanic | 6441 (30.6) | 2230 (41.4) | 3238 (41.3) | 337 (11.0) | 636 (13.3) |
| Missing | 272 (1.3) | 56 (1.0) | 135 (1.7) | 31 (1.0) | 50 (1.0) |
| Sex | |||||
| Male | 11 265 (53.5) | 2951 (54.8) | 4157 (53.0) | 1644 (53.9) | 2513 (52.6) |
| Female | 9804 (46.5) | 2436 (45.2) | 3692 (47.0) | 1407 (46.1) | 2269 (47.4) |
| Metropolitan area of residence | |||||
| Nonmetropolitan | 1871 (8.9) | 106 (2.0) | 170 (2.2) | 623 (20.4) | 972 (20.3) |
| Metropolitan | 19 131 (90.8) | 5281 (98.0) | 7679 (97.8) | 2405 (78.8) | 3766 (78.8) |
| Missing | 67 (0.3) | 0 | 0 | 23 (0.8) | 44 (0.9) |
| County educational levelb | |||||
| High | 4910 (23.3) | 997 (18.5) | 1528 (19.5) | 926 (30.4) | 1459 (30.5) |
| Middle to high | 4923 (23.4) | 1112 (20.6) | 1556 (19.8) | 894 (29.3) | 1361 (28.5) |
| Middle to low | 5232 (24.8) | 1296 (24.1) | 1888 (24.1) | 780 (25.6) | 1268 (26.5) |
| Low | 5999 (28.5) | 1982 (36.8) | 2877 (36.7) | 447 (14.7) | 693 (14.5) |
| Missing | 5 (0.02) | 0 | 0 | 4 (0.1) | 1 (0.02) |
| County poverty levelc | |||||
| High | 5086 (24.1) | 1501 (27.9) | 2212 (28.2) | 536 (17.6) | 837 (17.5) |
| Middle to high | 5441 (25.8) | 1499 (27.8) | 2126 (27.1) | 706 (23.1) | 1110 (23.2) |
| Middle to low | 4112 (19.5) | 763 (14.2) | 1153 (14.7) | 847 (27.8) | 1349 (28.2) |
| Low | 6425 (30.5) | 1624 (30.1) | 2358 (30.0) | 958 (31.4) | 1485 (31.1) |
| Missing | 5 (0.02) | 0 | 0 | 4 (0.1) | 1 (0.02) |
| Cancer site | |||||
| Leukemias, myeloproliferative diseases, and myelodysplastic diseases | 6797 (32.3) | 1857 (34.5) | 2714 (34.6) | 874 (28.6) | 1352 (28.3) |
| Lymphomas and reticuloendothelial | 2180 (10.3) | 554 (10.3) | 772 (9.8) | 328 (10.8) | 526 (11.0) |
| CNS and miscellaneous intracranial and intraspinal | 4289 (20.4) | 1075 (20.0) | 1504 (19.2) | 701 (23.0) | 1009 (21.1) |
| Neuroblastoma and other peripheral nervous cell | 1438 (6.8) | 346 (6.4) | 487 (6.2) | 237 (7.8) | 368 (7.7) |
| Renal | 1121 (5.3) | 294 (5.5) | 406 (5.2) | 151 (4.9) | 270 (5.6) |
| Retinoblastoma | 586 (2.8) | 125 (2.3) | 238 (3.0) | 101 (3.3) | 122 (2.6) |
| Hepatic | 389 (1.8) | 97 (1.8) | 147 (1.9) | 44 (1.4) | 101 (2.1) |
| Malignant bone | 963 (4.6) | 253 (4.7) | 343 (4.4) | 125 (4.1) | 242 (5.1) |
| Soft-tissue and other extraosseous sarcomas | 1449 (6.9) | 361 (6.7) | 517 (6.6) | 230 (7.5) | 341 (7.1) |
| Germ cell, trophoblastic, and gonads | 730 (3.5) | 193 (3.6) | 250 (3.2) | 110 (3.6) | 177 (3.7) |
| Other malignant epithelial and malignant melanomas | 1052 (5.0) | 210 (3.9) | 445 (5.7) | 143 (4.7) | 254 (5.3) |
| Other or unspecified | 75 (0.4) | 22 (0.4) | 26 (0.3) | 7 (0.2) | 20 (0.4) |
| Insurance | |||||
| Private or other | 12 294 (58.4) | 3528 (65.5) | 4510 (57.5) | 1736 (56.9) | 2520 (52.7) |
| Medicaid | 7728 (36.7) | 1685 (31.3) | 2982 (38.0) | 1154 (37.8) | 1907 (39.9) |
| Uninsured | 325 (1.5) | 81 (1.5) | 95 (1.2) | 50 (1.6) | 99 (2.1) |
| Missing | 722 (3.4) | 93 (1.7) | 262 (3.3) | 111 (3.6) | 256 (5.4) |
Abbreviations: CNS, central nervous system; EXP, early expansion; NEXP, non–early expansion.
a
Percentages have been rounded and may not total 100.
b
Defined as percentage without high school educational attainment: less than 10.9% indicates high; 10.9% to 14.0%, middle to high; 14.1% to 20.7%, middle to low; and greater than 20.7%, as low.
c
Defined as percentage of families below poverty level: less than 7.65% indicates low; 7.65% to 10.14%, middle to low; 10.15% to 13.67%, middle to high; and greater than 13.67%, high.