asthma: Asthma repeated measures dataset from Littell et al. (2002)
Description
This dataset was used by Littell (2002) to demonstrate repeated measures analyses. The effect of two asthma drugs and a placebo were measured on 24 asthmatic patients. Each patient was randomly given each drug using an approach to minimize carry-over effects (Section 15.6) Forced expiratory volume (FEV1), the volume of air that can be expired after taking a deep breath in one second, was measured. FEV1 was measured hourly for eight hours following application of the drug. A baseline measure of FEV1 was also taken 11 hours before application of the treatment.source
Littell, R. C., Stroup, W. W., and R. J. Fruend (2002) SAS for linear models. John
Wiley and Associates.