Thall {pubh} | R Documentation |
RCT on the treatment of epilepsy.
Description
Randomised control trial of an antiepilectic drug (prograbide), in which the number of seizures of 59 patients at baseline and other four follow-up visits were recorded.
Usage
Thall
Format
A tibble with 59 rows and 8 variables:
- id
Subject ID.
- treat
Treatment, factor with levels "Control" and "Prograbide".
- base
Number of seizures at baseline.
- age
Age in years at baseline.
- y1
Number of seizures at year one follow-up.
- y2
Number of seizures at year two follow-up.
- y3
Number of seizures at year three follow-up.
- y4
Number of seizures at year four follow-up.
Source
Thall, PF and Vail, SC (1990) Some covariance models for longitudinal count data with over-dispersion. Biometrics, 46: 657-671.
Stukel, TA (1993) Comparison of methods for the analysis of longitudinal data. Statistics Med 12: 1339-1351.
Shoukri, MM and Chaudhary, MA (2007) Analysis of correlated data with SAS and R. Third Edition. Chapman & Hall/CRC.