Description | Â | Cases1 | |||||
---|---|---|---|---|---|---|---|
 | Controls (N = 846) | All (N = 802) | Self-reported (N = 497) | Proxy-reported (N = 305) | |||
Vitamin Supplement intake (% YES) | 62.6 | 52.4 | *** | 50.2 | *** | 56.0 | * |
General Demographics | Â | Â | Â | Â | Â | Â | Â |
   Age (median) ± SE2 | 55.1 ± 0.6 | 55.4 ± 0.6 | ns | 49.7 ± 0.7 | *** | 64.7 ± 0.8 | *** |
   Gender as % Male | 54.5 | 57.1 | ns | 58.6 | ns | 54.8 | ns |
   Ethnicity as % White3 | 83.8 | 83.3 | ns | 83.9 | ns | 82.3 | ns |
Socio-economic Status Measures (%) | Â | Â | Â | Â | Â | Â | Â |
   Household Income4 |  |  |  |  |  |  |  |
<$29,999 | 25.0 | 24.3 | ns | 17.4 | *** | 36.0 | *** |
$30,000–$69,999 | 40.8 | 39.8 |  | 38.5 |  | 42.1 |  |
≥$70,000 | 34.1 | 35.9 |  | 44.1 |  | 21.9 |  |
   Highest Education |  |  |  |  |  |  |  |
Less than high school | 6.0 | 10.1 | ** | 4.8 | ns | 18.7 | *** |
High school, some college | 48.5 | 48.9 | Â | 47.5 | Â | 51.2 | Â |
College graduate and/or more | 45.5 | 41.0 | Â | 47.7 | Â | 30.2 | Â |
Socio-economic Status5 | Â | Â | Â | Â | Â | Â | Â |
   <High School education or income <$29,999 | 27.3 | 27.7 | ns | 19.1 | *** | 41.6 | *** |
   ≥High School graduate or income $30,000–$69,999 | 53.2 | 50.4 |  | 52.7 |  | 46.6 |  |
   College graduate and income ≥ $70,000 | 19.5 | 22.0 |  | 28.2 |  | 11.8 |  |
Body Mass Index6 (median) ± SE2 | 25.7 ± 0.2 | 25.9 ± 0.2 | ns | 25.7 ± 0.2 | ns | 26.2 ± 0.3 | ns |
   Tumors Types (%) |  |  |  |  |  |  |  |
Glioblastoma | Â | 59.2 | Â | 47.7 | Â | 78.0 | Â |
Anaplastic Astrocytoma | Â | 11.2 | Â | 10.7 | Â | 12.1 | Â |
Astrocytoma | Â | 5.4 | Â | 7.2 | Â | 2.3 | Â |
Oligodendroglioma | Â | 11.1 | Â | 16.5 | Â | 2.3 | Â |
Oligoastrocytoma | Â | 6.2 | Â | 8.5 | Â | 2.6 | Â |
Ependymoma | Â | 1.0 | Â | 1.4 | Â | 0.3 | Â |
Other | Â | 5.9 | Â | 8.1 | Â | 2.3 | Â |