TABLE 1.

Main Childhood Cancers: Numbers of Studies, Statistical Comparisons, and Significant Excesses

CancerNo. of StudiesNo. of Statistical Comparisons
TotalNo. With Excess
Leukemia186914
Brain tumors1810621*
Neuroblastoma770
Non-Hodgkin lymphoma3201
Wilms tumor5288
Ewing tumor4124
Other13267
Total6826855
  • Derived from Zahm and Ward. 63

  • * Twelve were from 1 study with 26 comparisons.

  • Caldwell et al, 64 cluster of 10 colorectal cancer.