About the Authors

Mercè Comas

mcomas@parcdesalutmar.cat

Affiliations Epidemiology and Evaluation Department, Hospital del Mar, Barcelona, Spain, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain, Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC), Barcelona, Spain

Joan Mendivil

Affiliation CPS Market Access, Roche Diagnostics International Ltd., Rotkreuz, Switzerland

Montserrat Andreu

Affiliations IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain, Gastroenterology Department, Hospital del Mar, Barcelona, Spain

Cristina Hernández

Affiliations Epidemiology and Evaluation Department, Hospital del Mar, Barcelona, Spain, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

Xavier Castells

Affiliations Epidemiology and Evaluation Department, Hospital del Mar, Barcelona, Spain, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain, Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC), Barcelona, Spain

Competing Interests

Author JM received funding from Roche Diagnostics International Ltd., a commercial company, for this study. There are no patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: MC JM MA CH XC. Data curation: MC CH. Formal analysis: MC. Funding acquisition: MC MA XC. Investigation: MC JM MA CH XC. Methodology: MC JM MA CH XC. Project administration: MC XC. Resources: MC CH XC. Software: MC CH. Supervision: MC XC. Validation: MC JM MA CH XC. Visualization: MC JM. Writing – original draft: MC JM MA CH XC. Writing – review & editing: MC JM MA CH XC.