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Number of patients required in lung function studies.

Abstract:
Tables are presented showing estimates of the number of subjects which is required to give an 80% or 90% chance of detecting various differences in forced expiratory volume in one second, forced vital capacity, total lung capacity, transfer factor, and residual volume between the mean of two groups by means of Student's t test.

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Publisher copy:
10.1136/thx.41.11.830

Authors


More by this author
Institution:
University of Oxford
Division:
MSD
Department:
Nuffield Department of Population Health
Sub department:
Population Health
Role:
Author
Publisher:
BMJ Publishing Group
Journal:
Thorax More from this journal
Volume:
41
Issue:
11
Pages:
830-832
Publication date:
1986-11-01
DOI:
EISSN:
1468-3296
ISSN:
0040-6376
Language:
English
Keywords:
Pubs id:
pubs:351706
UUID:
uuid:f81b81e7-59de-4cf6-a607-0518634695a4
Local pid:
pubs:351706
Source identifiers:
351706
Deposit date:
2012-12-19

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