1. Campdevànol Hospital, Campdevànol, Girona, Spain;, Universitat Autònoma de Barcelona, Barcelona, Spain
2. Girona Region 4, Catalan Institute of Health, Girona, Spain
3. Primary Care Centre – Anglès, Institute of Healthcare, Girona, Spain
4. Research Group on Statistics, Applied Economics and Health (GRECS), University of Girona, Spain