Lise Rochaix

Professeure émérite PSE

CV EN ANGLAIS
  • Professeur émérite
  • Université Paris 1 Panthéon-Sorbonne
Groupes de recherche
  • Chercheur associé à la Chaire Hospinnomics – Hospital | Innovation | Economics.
THÈMES DE RECHERCHE
  • Economie comportementale
  • Santé
  • Systèmes de santé
Contact

Adresse :48, Boulevard Jourdan,
75014 Paris, France

Publications HAL

  • Into the Far West? Investigating Health Policy-Makers’ Willingness to Adopt Decrementally Cost-Effective Innovations Using a DCE Approach Pré-publication, Document de travail

    In a context of increasingly limited resources, a number of strategies, such as the adoption of decrementally cost-effective interventions (d-CEIs), which are both less clinically effective and less costly, could offer potential levers at enhancing both efficiency and equity in healthcare systems. These interventions are located in the SouthWest (S-W) quadrant of the cost-effectiveness plane, and have yet received little attention from researchers or HTA agencies as they are often perceived as per se “unethical” or “unacceptable”, hence the reference sometimes made to the S-W quadrant as the ‘Far West’. The purpose of our paper is to investigate policy-makers’ willingness to adopt d-CEIs using a choice experiment. We use a two-stage pairwise DCE survey to elicit (i) preferences for d-CEIs’ attributes in forced choices and (ii) adoption preferences, i.e. the determinants of d-CEIs’ adoption (unforced choices). We investigate the effect (and trade-offs) between three attributes: health loss (very small to significant), reversibility defined as the possibility to switch back to usual care (from possible to hardly possible) and cost-savings (from 5% to 15% of a fixed budget). Such trade-offs are contextualized by using two sensitivity attributes: disease severity (low and moderate) and savings uncertainty (low and high). Our final sample consists of 180 respondents with 46.7% originating from France and the remaining respondents from other EU countries. All attributes’ levels have a significant effect in the two decision stages. The “health loss” attribute dominates in the first stage followed by “reversibility”: we calculate that decision-makers would require 28.3% increase of budget savings to be indifferent between a scenario of small versus significant health losses and 14.5% budget savings to be indifferent between a scenario of possible and hardly possible reversibility. In contrast, the “reversibility” attribute dominates in the second stage suggesting that anticipated regret may play a role in adoption decisions.

    Publié en

  • Impact of tariff refinement on the choice between scheduled C‐section and normal delivery: Evidence from France Article dans une revue

    Studying quasi-experimental data from French hospitals from 2010 to 2013, we test the effects of a substantial diagnosis-related group (DRG) tariff refinement that occurred in 2012, designed to reduce financial risks of French maternity wards. To estimate the resulting DRG incentives with regard to the choice between scheduled C-sections and other modes of child delivery, we predict, based on pre-admission patient characteristics, the probability of each possible child delivery outcome and calculate expected differences in associated tariffs. Using patient-level administrative data, we find that introducing additional severity levels and clinical factors into the reimbursement algorithm had no significant effect on the probability of a scheduled C-section being performed. The results are robust to multiple formulations of DRG financial incentives. Our paper is the first study that focuses on the consequences of a DRG refinement in obstetrics and develops a probabilistic approach suitable for measuring the expected effects of DRG fee incentives in the presence of multiple tariff groups.

    Revue : Health Economics

    Publié en

  • Multicentre, randomised, economic evaluation of a web-based interactive education platform, simple or enhanced, for patients with end-stage renal disease: the PIC-R trial protocol Article dans une revue

    Introduction End-stage renal disease (ESRD) affects 84 000 persons in France and costs an estimated €4.2 billion. Education about their disease empowers patients and allows improved management of their disease and better health outcomes. This study aims to explore whether the addition of an interactive web-based platform to patient education is effective and cost-effective and additionally whether complementing the platform with social functions and features improves its performance. Methods and analysis Patients with severe, ESRD or post-transplant will be randomised 1:1:1 to either standard therapeutic education; or education using a specific application; or the enhanced interactive app with social features. The total follow-up duration is 18 months. Primary endpoint is the cost utility of using app-based therapeutic intervention; secondary endpoints are: compliance with treatment guidelines, app use (professionals and patients), patients’ satisfaction, budget impact analysis. Ethics and dissemination The findings will inform the deployment and reimbursement of the application. The study has ethical approval by the Ile de France ethics committee. Dissemination of the results will be presented at conferences and in peer-reviewed publications.

    Auteur : Clement De Chaisemartin Revue : BMJ Open

    Publié en

  • Combined incentive actions, focusing on primary care professionals, to improve cervical cancer screening in women living in socioeconomically disadvantaged geographical areas: a study protocol of a hybrid cluster randomised effectiveness and implementation trial- RESISTE Article dans une revue

    To cite: Hassine A, Antoni G, Fender M, et al. Combined incentive actions, focusing on primary care professionals, to improve cervical cancer screening in women living in socioeconomically disadvantaged geographical areas: a study protocol of a hybrid cluster randomised effectiveness and implementation trial-RESISTE. BMJ Open 2022;12:e065952. Introduction Cervical cancer (CC) causes thousands of deaths each year. Nearly 100% of cases are caused by oncogenic strains of human papillomavirus (HPV). In most industrialised countries, CC screening (CCS) is based on the detection of HPV infections. For many reasons including lower adherence to CCS, underserved women are more likely to develop CC, and die from it. We aim to demonstrate that the use of incentives could improve screening rates among this population. Methods and analysis Our cluster randomised, controlled trial will include 10 000 women aged 30–65 years eligible for CCS, living in deprived areas in four French departments, two mainlands and two overseas, and who did not perform physician-based HPV testing within the framework of the nationally organised screening programme. HPV self-sampling kit (HPVss) will be mailed to them. Two interventions are combined in a factorial analysis design ending in four arms: the possibility to receive or not a financial incentive of €20 and to send back the self-sampling by mail or to give it to a health professional, family doctor, gynaecologist, midwife or pharmacist. The main outcome is the proportion of women returning the HPVss, or doing a physician-based HPV or pap-smear test the year after receiving the HPVss. 12-month follow-up data will be collected through the French National Health Insurance database. We expect to increase the return rate of HPV self-samples by at least 10% (from 20% to 30%) compared with the postal return without economic incentive. Ethics and dissemination Ethics approval was first obtained on 2 April 2020, then on July 29 2022. The ethics committee classified the study as interventional with low risk, thus no formal consent is required for inclusion. The use of health insurance data was approved by the Commission Nationale Informatique et Libertés on 14 September 2021 (ref No 920276). An independent data security and monitoring committee was established. The main trial results will be submitted for publication in a peer-reviewed journal. Trial registration number NCT04312178 .

    Auteur : Amber Cripps Revue : BMJ Open

    Publié en

  • Cost-effectiveness of strategies to control the spread of carbapenemase-producing Enterobacterales in hospitals: a modelling study Article dans une revue

    Background Spread of resistant bacteria causes severe morbidity and mortality. Stringent control measures can be expensive and disrupt hospital organization. In the present study, we assessed the effectiveness and cost-effectiveness of control strategies to prevent the spread of Carbapenemase-producing Enterobacterales (CPE) in a general hospital ward (GW). Methods A dynamic, stochastic model simulated the transmission of CPE by the hands of healthcare workers (HCWs) and the environment in a hypothetical 25-bed GW. Input parameters were based on published data; we assumed the prevalence at admission of 0.1%. 12 strategies were compared to the baseline (no control) and combined different prevention and control interventions: targeted or universal screening at admission (TS or US), contact precautions (CP), isolation in a single room, dedicated nursing staff (DNS) for carriers and weekly screening of contact patients (WSC). Time horizon was one year. Outcomes were the number of CPE acquisitions, costs, and incremental cost-effectiveness ratios (ICER). A hospital perspective was adopted to estimate costs, which included laboratory costs, single room, contact precautions, staff time, i.e. infection control nurse and/or dedicated nursing staff, and lost bed-days due to prolonged hospital stay of identified carriers. The model was calibrated on actual datasets. Sensitivity analyses were performed. Results The baseline scenario resulted in 0.93 CPE acquisitions/1000 admissions and costs 32,050 €/1000 admissions. All control strategies increased costs and improved the outcome. The efficiency frontier was represented by: (1) TS with DNS at a 17,407 €/avoided CPE case, (2) TS + DNS + WSC at a 30,700 €/avoided CPE case and (3) US + DNS + WSC at 181,472 €/avoided CPE case. Other strategies were dominated. Sensitivity analyses showed that TS + CP might be cost-effective if CPE carriers are identified upon admission or if the cases have a short hospital stay. However, CP were effective only when high level of compliance with hand hygiene was obtained. Conclusions Targeted screening at admission combined with DNS for identified CPE carriers with or without weekly screening were the most cost-effective options to limit the spread of CPE. These results support current recommendations from several high-income countries.

    Revue : Antimicrobial Resistance and Infection Control

    Publié en

Onglets

Professeur agrégé des Universités en sciences économiques, titulaire d’un Master en Sciences économiques et d’un Ph.D en économie de la santé de l’université de York (Royaume-Uni), Lise Rochaix a commencé sa carrière comme chargée de recherches au CNRS. Elle a enseigné comme maître de conférences à l’université de Paris-Dauphine, puis comme professeur à l’issue du concours d’agrégation du supérieur en Sciences économiques de 1994, à l’université de Bretagne Occidentale, puis à l’université d’Aix-Marseille II.

Ses travaux de recherche portent sur l’évaluation des politiques publiques, dans une approche comparative, tant internationale que sectorielle, avec un intérêt particulier pour la régulation, en termes d’efficience et d’équité, des systèmes de santé.

Elle a été chargée de mission sur la politique de santé à la Direction de la Prévision au Ministère des finances pendant trois ans (1990-1993) et a participé à cette occasion à l’élaboration du rapport Santé 2010 qui a préfiguré la constitution des Agences Régionales de Santé. Elle a été membre de la mission de concertation pour la rénovation des soins de ville lors du deuxième Grenelle de la santé (2002).

Elle a été nommée par le Président du Sénat en janvier 2006 au Collège de la Haute Autorité de Santé. Elle était en charge de la mission médico-économique de la HAS et présidait la Commission d’Evaluation Economique et de Santé Publique.

Depuis juin 2014, elle est membre de PSE et titulaire de la chaire hospinnomics créée par l’AP-HP et PSE.

Pour tout savoir sur hospinnomics: www.hospinnomics.eu