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PhD thesis: Statistical modelling of competing risks with incomplete data

This repository contains the sources files for my PhD thesis at Leiden University (defended on July 2nd, 2025), which was made using Quarto and koma-script. The pdf of the thesis is freely available at Leiden University Scholarly Publications (online repository).

If you want to directly access the individual chapters (all were/are going to be published open access) + associated code, you can use the Table below:

Chapter Journal DOI Code repository
Handling missing covariate data in clinical studies in haematology (Chapter 2) Best Practice & Research Clinical Haematology 10.1016/j.beha.2023.101477 https://github.com/survival-lumc/ReviewHaemaMissing
Multiple imputation for cause-specific Cox models: Assessing methods for estimation and prediction (Chapter 3) Statistical Methods in Medical Research 10.1177/09622802221102623 https://github.com/survival-lumc/CauseSpecCovarMI
Impact of comorbidities and body mass index on the outcomes of allogeneic hematopoietic cell transplantation in myelofibrosis: A study on behalf of the Chronic Malignancies Working Party of EBMT (Chapter 4) American Journal of Hematology 10.1002/ajh.27262 Not publicly available :(
Multiple imputation of missing covariates when using the Fine–Gray model (Chapter 5) Statistics in Medicine 10.1002/sim.70166 https://github.com/survival-lumc/FineGrayCovarMI
Why you should avoid using multiple Fine–Gray models: insights from (attempts at) simulating proportional subdistribution hazards data (Chapter 6) Journal of the Royal Statistical Society, Series A (Statistics in Society) 10.1093/jrsssa/qnae056 https://github.com/survival-lumc/FineGrayDGM
Joint models quantify associations between immune cell kinetics and allo-immunological events after allogeneic stem cell transplantation and subsequent donor lymphocyte infusion (Chapter 7) Frontiers in Immunology 10.3389/fimmu.2023.1208814 https://github.com/survival-lumc/ImmuneReconstJM

Usage

After cloning this repository using

git clone https://github.com/edbonneville/phd-thesis.git

..the thesis can be rendered with

quarto::quarto_render(output_format = "pdf")

..but most likely that will not work for you from the off as I have unfortunately done a fairly lackluster job of documenting the various R/LaTex/system dependencies here (oopsies). In any case, you need all of R, Quarto, and Git installed. The suggested TinyTex workflow suggested by Quarto worked nicely for me, including auto-installing LaTex packages on the fly.

Most of the heavy lifting for the formatting is done in _quarto.yml, but the following non-standard stuff might be useful:

  • chapterthumb.sty are the koma-script-based thumb indices for the chapters, with minor formatting edits also allowing for bleed correction when sending to the printers.
  • tex/preamble-global.tex is the overall preamble, with some font settings + headings set-up.
  • tex/koma-chapter-titles.tex is the koma-script-based emulation of the 'Lenny' chapter title style from fncychap, again with some minor edits.
  • tex/before-body.tex is my set-up for the 'non-scientific' part of the thesis required by Leiden University, and uses some pandoc variables.

Credits

Credit to the following repositories and blog posts helping me put this thesis together: