Table 1.

Descriptive characteristics of non-Hispanic white participants with and without genotyping: NCI Adult Brain Tumor Study, 1994 to 1998

CharacteristicsCases (n = 197)Controls (n = 799)
All*GenotypedAll*Genotyped
(n = 163)(n = 101)(n = 715)(n = 330)
Male, %22.120.846.746.4
Mean age, y56.154.350.449.4
Education, %
Less than high school8.06.910.810.9
High school of general equivalency diploma or 3 y of college66.368.361.059.1
Complete college or graduate school or professional school25.223.825.928.5
Unknown0.61.02.41.5
  • *Limited to individuals of non-Hispanic Caucasian background.