Table 1.
Demographic characteristics of case subjects diagnosed with oligodendroglioma (OGD), anaplastic oligodendroglioma (AO), or mixed glioma (MG), and control subjects from 5 US and 2 international case–control studies
| Study site | n, Cases OGD/AO/MG | n, Controls | % White, case/control | % Male, case/control | Mean age at diagnosis/interview, case/control (y) |
|---|---|---|---|---|---|
| MD Anderson | 99 (51/36/12) | 204 | 85.9/87.8 | 51.5/52.0 | 41.4/42.3 |
| NCI | 85 (46/9/30) | 172 | 94.1/93.6 | 51.8/52.3 | 41.1/40.8 |
| NIOSH | 108 (74/12/22) | 216 | 98.2/95.8 | 50.0/50.0 | 43.8/44.8 |
| UCSF | 198 (92/43/63) | 400 | 83.8/84.5 | 60.1/59.5 | 44.9/45.2 |
| UIC/Duke | 62 (34/26/2) | 144 | 91.9/97.9 | 40.3/47.9 | 42.9/46.0 |
| Sweden | 33 (7/13/13) | 64 | NA/NA | 51.5/51.6 | 51.6/51.3 |
| Denmark | 32 (25/7/0a) | 60 | NA/NA | 46.9/46.7 | 43.8/44.3 |
aData on mixed gliomas were not provided. Should the study site abbreviations be identified?