To the Editor: In their cross-sectional analysis of data from 44 350 participants in a national screening colonoscopy program in Austria, Dr Ferlitsch and colleagues reported that similar prevalences and numbers needed to screen for advanced adenomas and colorectal cancer were observed in men at ages of about 10 years younger than women.1 These findings and similar findings from another large cross-sectional study from Poland2 led the authors to suggest reconsidering screening recommendations based on age, taking the observed sex differences into account.
Hoffmeister M, Brenner H. Sex-Specific Prevalence of Adenomas and Colorectal Cancer. JAMA. 2012;307(2):142–144. doi:10.1001/jama.2011.1980
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