The Chair conducts a series of research projects on Value-Based Health Care. Our research involves developing and implementing tools to assess outcomes from the patient perspective. The Chair’s research team seeks to better understand the interplay of monetary & non-monetary incentives on high-value care, with a focus on motivation mechanisms.

We analyze what quality indicators matter most to patients when evaluating a medical team. We measure the impact of patient-surgeon relationships on sick leave duration, functional recovery and malpractice rates, in order to improve the value of surgical care.


Katz G., Bell-Aldeghi R., Radoszycki L., Pitts P., and Song Z. Outcomes or Experiences — What Do Patients Value More When Evaluating Medical Teams? New England Journal of Medicine. (2024) 5; 7.

Azarpira M, Katz G, Chikhani S, Chaves C, Dubert T. Components and impact of the patient–surgeon relationship – A review, Hand Surgery and Rehabilitation. 2023 (42) 6: 607-608.come Measures (PROMs).” NEJM Catalyst, 4 (11). 

Bates, David W., Jens Deerberg-Wittram, Gregory Katz, Katharina Braeger, Lena S. Hirsch, Gary S. Kaplan, Lukas Kwietniewski, Christoph A. Meier, Camila Plaza de Laifer, and Eyal Zimlichman. 2023. “Using Publicly Reported Global Hospital Rankings to Improve Dissemination of Patient-Reported Outcome Measures (PROMs).” NEJM Catalyst, 4 (11). 

Azarpira M, Katz G, Chikhani S., Gübeli A, Guidi M, Chikhani S, Amadio P, Dubert T, Patient-Surgeon Communication: a Litterature Review and Thematic Analysis. Journal of Surgery. 2023 (8): 1925.

Azarpira M, Katz G, Chaves C, Gübeli A, Guidi M, Chikhani S, Amadio P, Dubert T, Translation of a patient–surgeon relationship assessment instrument (Q-PASREL) into six languages, Hand Surgery & Rehabilitation, 2023 (42) 4:337-341. June 15, 2023.

Varriale P, Müller B, Katz G, Dallas L, Aguaron A, Azoulai M, Girard N, Patient Perspectives on Value Dimensions of Lung Cancer Care: Cross-sectional Web-Based Survey, JMIR Formative Research. 2023; 7: e37190.

Katz G., Rouquette A., Lignereux F., Mourgues T., Weber M., Lundström M. Validity Of The French Version Of Catquest-9SF And Use Of An Electronic Notepad For Entering Patient-Reported Outcome Measures. Eye & Vision (2021) 8:11.

Bell-Aldeghi R., Jusot, F. And Tubeuf S., Sustainability In The French Health System (Baltagi, B.H. and Moscone, F., ed.). The Sustainability Of Health Care Systems In Europe – Contributions to Economic Analysis, Emerald, Bingley, (2021) 295:167-187.

Pullini A., Martins Caetano G., Clatiaux H., Vergeron L., Pitts P., Katz G., Impact of Real-World Data on Market Authorization, Reimbursement Decision & Price Negotiation. Therapeutic Innovation & Regulatory Science, 2021; 55(1) 228-238.

Katz G.(Dir.) Implementing Value-Based Health Care In Europe: Handbook For Pioneers. EIT Health (2020).

Bell-Aldeghi R., Gibrat B., Chauvin P., Rapp T., Ould-Kaci K., Sevilla-Dedieu C. Determinants of the Cost-Effectiveness of Telemedecine: Results from a Systematic Review and Multivariable Analysis. Value in Health (2020) 23(1): S292.

Dubert T, Girault C, Rozenblat M, Dorey J, Khalifa-Dubert H, Katz G, Impact of Patient-Surgeon Relationship on Patient’s Return to Work. Journal of Bone & Joint Surgery (2019) 101: 1366-74.


The Chair organizes a series of conferences on Value-Based Health Care with experts from around the world. We invite health system leaders to share their experience in how VBHC is transforming practices and informing payment models and policy reforms. The Chair works in partnership with the International Consortium for Health Outcomes Measurement (ICHOM).

On June 16, 2023, the Chair VBHC Summit in Paris will take place at the Conseil Economique, Social & Environnemental with the participation of distinguished speakers from Harvard, Ministries of Health, the UK National Health Service, Karolinksa Institute, as well as patient representatives, payers and industrial leaders.


AstraZeneca & Air Liquide Healthcare support the Chair through grants that do not interfere with the Chair’s teaching and scientific activities. The Chair remains academically independent in terms of orientations, organization & publications.

Air Liquide Healthcare is engaged alongside patients, healthcare professionals and hospitals to make the healthcare system efficient and virtuous for all. As a major world player in home healthcare, an expert in chronic disease follow-up at home, and a supplier of medical gases for hospitals, the 16,500 men and women it employs support 1.7 million patients at home and 15,000 hospitals and clinics, in more than 35 countries.

AstraZeneca is a global, science-led biopharmaceutical company that focuses on the discovery, development, and commercialization of prescription medicines in Oncology, Rare Diseases, and BioPharmaceuticals, including Cardiovascular, Renal & Metabolism, and Respiratory & Immunology. Based in Cambridge, UK, AstraZeneca operates in over 100 countries and its innovative medicines are used by millions of patients worldwide.


Prof. Gregory Katz

Prof. Gregory Katz

is Chair of Value in Health at the Université Paris Cité and Academic Director of the Value-Based Health Care Graduate Program. A member of the French Academy of Surgery, he is also President of PromTime, a health data science company commissioned by the French Ministry of Health to incentivize practitioners on high value care.
Dr. Raquel Correia
Program Director

Dr. Raquel Correia

is Program Coordinator of the Value-Based Health Care Graduate Program and mentor in the program. A medical doctor, Raquel is passionate about the impact of medical training. She practices general medicine for organizations such as SOS Médecins and AXA.
Peter Pitts​
Visiting Professor

Peter Pitts​

is Visiting Professor in the Chair where he lectures and mentors team projects with Chair participants. A former Associate Commissioner of the US FDA, he is President of the Center of Medicine in the Public Interest.
Matt Hickey
Visiting Lecturer

Matt Hickey

is Visiting Lecturer in the Chair where he lectures and mentors team projects with Chair participants. Matt is CEO of the Health Value Alliance, Member and Co-chair of the All.Can International Research and Evidence Group and former Head of Cancer for AXA Health UK.