The question continues.
Gary Carter has died of a glioblastoma.
Harry Wendelstedt has died of a brain tumor described as the same as Gary Carter’s.
Arbitrary time 1980. That makes nine deaths from brain tumors in field people from that time.
Gary Carter, Johnny Oates, Ken Brett, John Vukovich, Tug McGraw, Dick Howser, Dan Quisenberry, Bobby Murcer, and Harry Wendelstedt.
Back of envelope calculation- expected # of brain tumors- 7/100,000/year.
# of field personnel in 1980 - 1500 (generous estimate considering 26 teams but include umpires, managers, coaches and call-ups to make 60/team). Number might be 20%-25% less, certainly not more.
# of brain tumors expected in 2012 from field personnel in 1980 = 7/100,000 x 1500 x 32 = 3.4
So the observed number,9, is more than double (no confidence interval available). Assumptions are generous to reach the 3.4 number.
Is this coincidence? Probably. But it definitely keeps the question of whether there is a link between 1970-80’s MLB and brain cancer open.
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