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Quantification of the completeness of follow-up.

Abstract:

Completeness of follow-up is important, especially in clinical trials, since unequal follow-up in the treatment groups can bias the analysis of results. In survival studies, information on participants who do not complete the study is often omitted because their data can be included up to the time at which they were lost to follow-up. We propose a simple measure of completeness that is the ratio of the total observed person-time and the potential person-time of follow-up in a study. Our measu...

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Publication status:
Published

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Authors


Altman, DG More by this author
De Stavola, BL More by this author
Journal:
Lancet
Volume:
359
Issue:
9314
Pages:
1309-1310
Publication date:
2002-04-05
DOI:
EISSN:
1474-547X
ISSN:
0140-6736
URN:
uuid:4d1af448-079d-425c-a861-dab8a49cc6ae
Source identifiers:
317891
Local pid:
pubs:317891

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