SUBJECT: Analysis of follow-up studies AUTHOR: David Clayton, MRC Biostatistical Research Unit, Cambridge EMAIL: david.clayton@mrc-bsu.cam.ac.uk Michael Hills, London School of Hygiene and Tropical Medicine, London EMAIL: mhills@lshtm.ac.uk COMMENTS: Use standard in1 installation instructions. From inside Stata, on-line help is available. Type 'help lexis', 'help mhrate', or 'help tabrate'. The data set used in the examples is stored in ./dta.