Number of patients required in lung function studies.

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...

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Bibliographic Details
Main Authors: Davison, A, Fayers, P, Nunn, A, Venables, K, Taylor, A
Format: Journal article
Language:English
Published: BMJ Publishing Group 1986