GBM Incidence Rates Relatively Steady in U.S. and Canada Unlike the Doubling Seen in England

GBM Incidence Rates Relatively Steady in U.S. and Canada
Unlike the Doubling Seen in England
microwavenews.com, 13 December 2019

The incidence of glioblastoma multiforme, GBM, the most aggressive type of brain tumor, though rising slowly over the last 20 years, has not jumped up in the U.S. and Canada, as it has in England and a number of other northern European countries, according to a new analysis of national brain tumor registry data.

Between 1995 and 2015, GBM rates went up 10% in the U.S. and 26% in Canada. In contrast, the increase in England over the same period was 110%.

The new analysis, led by Faith Davis of the University of Alberta, Canada, and published in a letter to Neuro-Oncology, shows that GBM rates in all three countries have been converging since 1995 and are now quite similar. In 2015, the rates were: 4.32 in the U.S., 4.50 in Canada and 5.02 in England, per 100,000 persons per year.

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