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We read with interest the analysis of deaths occurring within the Nottingham trial of faecal occult blood screening for colorectal cancer performed by Whynes and colleagues,1 reported in a recent issue of Gut. While the aims of this study are to be commended, we have some concerns regarding the interpretation of ages at death and the methodology used to assign deprivation score.
With respect to age at death, ‘those who participated in screening died at a more advanced age than the controls who, …
Competing interests None.
Provenance and peer review Not commissioned; not externally peer reviewed.