JEROME W. YATES, M.D.
To the editor: Schimpff and colleagues (1) have made an excellent contribution to the study of infection prophylaxis in patients with compromised host defenses. Their conclusions are somewhat suspect because of their failure to take into account group differences in age. Age is known to be one of the most significant prognostic factors in patients with acute nonlymphocytic leukemia. In reviewing the results presented in the paper, one cannot agree with the statement made by the authors that the "three experimental groups were similar with regard to . . . age."
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YATES JW. Age and Prognosis in Acute Leukemia. Ann Intern Med. ;83:282. doi: 10.7326/0003-4819-83-2-282
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Published: Ann Intern Med. 1975;83(2):282.
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