Article
Beware of multiple comparisons: a study of symptoms associated with mutations of the HFE hemochromatosis gene.
Clinica chimica acta; international journal of clinical chemistry - 1 Nov 2005
Waalen Jill, Beutler Ernest
Abstract excerpt
BACKGROUND: Studies involving a large number of comparisons have a high likelihood of finding statistically significant associations by chance alone (Type 1 error). Genetic association studies are particularly prone to this pitfall. We tested the effect of multiple comparisons in a study of symptoms among subjects genotyped for mutations of the HFE hemochromatosis gene. METHODS: Two randomly selected groups were...
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