Table 2. Racial characteristics of cases.
| Whites (%) | Blacks (%) | APIs (%) | AIANs (%) | Unknown race (%) | |
|---|---|---|---|---|---|
| ALL, all counties (2423 cases) | 89 | 7 | 3 | 1 | 1 |
| ALL, metro (1921 cases) | 88 | 8 | 3 | 1 | 1 |
| ALL, nonmetro (502 cases) | 92 | 4 | 2 | 1 | 1 |
| ANLL, all counties (429 cases) | 81 | 13 | 5 | 0 | 0 |
| NHL, all counties (144 cases) | 84 | 10 | 6 | 0 | 0 |
Note: Percentages are given due to privacy concerns associated with small, exact numbers in some categories. For purposes of this study, ALL (acute lymphocytic leukaemia) is defined as International Classification of Diseases for Oncology, 2nd edn (ICD-O-2) morphology codes 9821 and 9828; ANLL (acute nonlymphocytic leukaemia) is defined as codes 9840, 9841, 9861, 9864, 9866, 9867, 9871–9874, 9891, 9894, and 9910; and NHL (non-Hodgkin's lymphoma) is defined as codes 9590, 9591–9595, 9670–9688, 9690–9717, 9720, 9723, and 9731–9764.
API=Asian/Pacific Islander, AIAN=American Indian/Alaska Native.