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...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
PeerJ Inc.
2014-07-01
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| Series: | PeerJ |
| Subjects: | |
| Online Access: | https://peerj.com/articles/480.pdf |