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Events per person year--a dubious concept.

In 1982 a new measure was introduced in research into osteoporosis and is now used everywhere in the literature. The so called "fracture rate" relates the number of fractures (single in some patients, multiple in others) to the cumulative time of observation of all patients. This concept,...

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Main Authors: Windeler, J., Lange, S.
格式: Artigo
語言:Inglês
出版: BMJ Group 1995
主題:
在線閱讀:https://ncbi.nlm.nih.gov/pmc/articles/PMC2548825/
https://ncbi.nlm.nih.gov/pubmed/7873955
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