Table 1.
Demographics of the Study Population
| Characteristics | N = 9204 |
|---|---|
| Demographic Features | |
| Age at Diagnosis | |
| < 1 years | 991 (10.8%) |
| 1–4 years | 3355 (36.5%) |
| 5–9 years | 2324 (25.2%) |
| 10–14 years | 2534 (27.5%) |
| Male Sex | 4961 (53.9%) |
| Race | |
| White | 6169 (67.0%) |
| Asian | 909 (9.9%) |
| Arab/West Asian | 179 (1.9%) |
| Aboriginal | 214 (2.3%) |
| Black | 239 (2.6%) |
| Latin American | 105 (1.1%) |
| Other | 169 (1.8%) |
| Unknown | 1220 (13.3%) |
| Diagnostic Era | |
| < 2007 | 4608 (50.1%) |
| ≥ 2007 | 4596 (49.9%) |
| Diagnosis | |
| Leukemia | 2699 (29.3%) |
| Acute lymphoblastic leukemia | 2138 (23.2%) |
| Acute myeloid leukemia | 395 (4.3%) |
| Lymphoma | 962 (10.5%) |
| Hodgkin lymphoma | 400 (4.3%) |
| Non-Hodgkin lymphoma excluding Burkitt’s lymphoma | 340 (3.7%) |
| Burkitt’s lymphoma | 162 (1.8%) |
| Solid Tumors | 3187 (34.6%) |
| Ewing sarcoma | 164 (1.8%) |
| Hepatoblastoma | 139 (1.5%) |
| Neuroblastoma and ganglioneuroblastoma | 734 (8.0%) |
| Osteosarcoma | 207 (2.2%) |
| Rhabdomyosarcoma | 273 (3.0%) |
| Wilms tumor | 424 (4.6%) |
| Central Nervous System Tumors | 2307 (25.1%) |
| Astrocytoma | 982 (10.7%) |
| Ependymoma | 197 (2.1%) |
| Medulloblastoma | 172 (1.9%) |
| Socioeconomic Factors | |
| Median Km to Nearest Tertiary Care Center (Interquartile Range) | 30.0 (12.2 to 112.4) |
| Income quintile | |
| 1 (lowest) | 1732 (18.8%) |
| 2 | 1759 (19.1%) |
| 3 | 1814 (19.7%) |
| 4 | 1843 (20.0%) |
| 5 (highest) | 1893 (20.6%) |
| Missing | 163 (1.8%) |