Number of patients required in lung-function studies

A G Davison, P M Fayers, A J Nunn, K M Venables, A J Taylor

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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.
Original languageEnglish
JournalThorax
Volume41
Issue number11
DOIs
Publication statusPublished - 1984

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Davison, A. G., Fayers, P. M., Nunn, A. J., Venables, K. M., & Taylor, A. J. (1984). Number of patients required in lung-function studies. Thorax, 41(11). https://doi.org/10.1136/thx.41.11.830