Table 1

Distribution of cases and controls by age and prior study

CasesControls
No.%No.%
Age
 <4010118.57315.5
 40–4425446.422247.0
 45–497814.37215.3
 50–548916.39019.1
 55–59254.6153.2
Study
 EMF23142.221345.1
 HORMONE376.8316.6
 BCYW8715.97716.3
 WISH19235.115132.0
Total547100.0472100.0