Attrition in a 30-year follow-up of a perinatal birth risk cohort: factors change with age

Attrition in a 30-year follow-up of a perinatal birth risk cohort: factors change with age

Background. Attrition is a major cause of potential bias in longitudinal studies and clinical trials. Attrition rate above 20% raises concern of the reliability of the results. Few studies have looked at the factors behind attrition in follow-ups spanning decades.Methods. We analyzed attrition and a...

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Bibliographic Details
Main Authors: Jyrki Launes, Laura Hokkanen, Marja Laasonen, Annamari Tuulio-Henriksson, Maarit Virta, Jari Lipsanen, Pentti J. Tienari, Katarina Michelsson
Format: Article
Language:English
Published: PeerJ Inc. 2014-07-01
Series:PeerJ
Subjects:
Attrition
Longitudinal studies
Birth cohort
Cohort studies
Prospective
Follow-up
Online Access:https://peerj.com/articles/480.pdf

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