1. Aix-Marseille Univ, INSERM, IRD, SESSTIM; Sciences Economiques et Sociales de la Santé et Traitement de l'Information Médicale; Marseille France
2. Department of Public Health; University of Copenhagen; Copenhagen Denmark
3. Statistical Inference, Decision and Operations Research (SiDOR) Group; University of Vigo; Spain
4. Department of Statistics and Operations Research Centre for Biomedical Research (CINBIO); University of Vigo; Spain