Biography

I’m a Biostatistician (20% FTE) in the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, and spend the rest of my time as a Consultant Stata Developer. Before moving to Stockholm in December 2020, I was Associate Professor of Biostatistics at the University of Leicester. Since January 2018, I am an Associate Editor of the Stata Journal and was previously a Section Editor of the Journal of Statistical Software for over 5 years. My main research interests include survival analysis, multilevel and mixed effects models, and statistical software development. I lead a programme of research developing methodology for the analysis of complex survival data, motivated by applications to electronic health records.

After completing my PhD on complex survival and joint longitudinal-survival models, which can be downloaded here, I did a post-doc at the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet in Stockholm, before returning to Leicester in March 2016 to take up a lectureship.

This website contains a collection of my work, including publications, software and teaching material. I hope you find it useful.

List of all publications can be found here

---

Selected publications:

As part of my research I have developed a range of software packages in Stata and R. More details, including tutorials, can be found on the package-specific pages:

merlin ~ mixed effects regression for linear and non-linear models
Tutorials in Stata, Stata version history (stable release), Stata version history (development release)

---

multistate ~ multi-state survival analysis
Tutorials in Stata, Stata version history (stable release), Stata version history (development release)

---

survsim ~ simulation of simple and complex survival data
Tutorials in Stata, Stata version history (stable release), Stata version history (development release)

---

stmixed ~ multilevel parametric survival models
Stata version history (stable release), Stata version history (development release)

---

staft ~ flexible parametric accelerated failure time models
Stata version history (stable release), Github repo.

---

sankey ~ Sankey graphs in Stata using Python
Stata version history (stable release)

---

stjm ~ joint models of longitudinal and survival data

---

stgenreg ~ general parametric survival models

---

stmix ~ two-component mixture parametric survival models

---

extfunnel ~ extended funnel plots for meta-analysis

---

metapow ~ simulation-based sample size calculations for designing trials based on an existing meta-analysis

---

I teach a number of short courses, some teaching material is made freely available on the course pages:

• Extended mixed effects regression models
• Competing risks and multi-state models
• Joint modelling of longitudinal and survival data
• Using simulation studies to evaluate statistical methods

• michael.crowther@ki.se
• +44(0)1162 297278
• michael.j.crowther
• Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden