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- Fewtrell, Mary S., et al.
(author)
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Attrition in Long-Term Nutrition Research Studies : A Commentary by the European Society for Pediatric Gastroenterology, Hepatology, and Nutrition Early Nutrition Research Working Group
- 2016
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In: Journal of Pediatric Gastroenterology and Nutrition - JPGN. - 0277-2116 .- 1536-4801. ; 62:1, s. 180-182
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Journal article (peer-reviewed)abstract
- Long-term follow-up of randomised trials and observational studies provide the best evidence presently available to assess long-term effects of nutrition, and such studies are an important component in determining optimal infant feeding practices. Attrition is, however, an almost inevitable occurrence with increasing age at follow-up. There is a common assumption that studies with <80% follow-up rates are invalid or flawed, and this criticism seems to be more frequently applied to follow-up studies involving randomised trials than observational studies. In this article, we explore the basis and evidence for this 80% rule and discuss the need for greater consensus and clear guidelines for analysing and reporting results in this specific situation.
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