CoDiab-VD: a Population-based Cohort on Quality of Care of Patients With Diabetes in the Canton of Vaud (Switzerland)

NCT01902043 | Unknown

• 1 other identifier: CoDiab-VD-151/11
• Study Type: observational
• Target: 1,033
• Locations: 1 country
• Sites: 1

Brief Summary

Diabetes, one of the most prevalent chronic disease (\~ 9% worldwide), represents a major public health burden in terms of morbidity, disability and mortality. Caring for patients with diabetes requires effective collaboration between healthcare providers, teamwork, self-management education and use of evidence-based medicine. However, these processes of care are complex and often suboptimal. Improving quality of diabetes care is thus needed to reduce the health and societal burden of this disease. In the canton of Vaud, a state in Switzerland with more than 700,000 inhabitants, a recent population-based study has shown that the prevalence of diabetes was around 7%. Data on the quality of diabetes care is scarce and quality of care data are still infrequently and unsystematically collected in Switzerland. In addition, when data are available, they focus on intermediate outcomes as well as clinical and biological cardiovascular risk factors. Population-based data on patient-reported outcomes are not considered. In 2010, the Public Health Department of the canton of Vaud initiated the development of a regional diabetes program entitled "Programme cantonal Diabète" (PcD). It aimed both at decreasing the incidence of diabetes and improving care for patients with diabetes. To tailor the program to the healthcare needs of patients and healthcare professionals involved in diabetes care, an exploratory study using qualitative methods was conducted in 2010. This was followed by a population-based survey conducted in fall 2011 and summer 2012. The objectives of the survey were to characterize patients with diabetes and assess the quality of the care they received. In addition, the results of the survey were used to help targeting unmet needs and possible areas of improvements, and constituted the patients' baseline measurement for the evaluation of the PcD. The CoDiab-VD cohort emerged from that initial project; its specific objectives were 1) to follow over time the quality of diabetes care, 2) to explore topics that the PcD needed for its development, 3) to assess the impact of the PcD on the care of patients with diabetes, and 4) to evaluate the coverage of the PcD in the canton of Vaud.

Conditions

Diabetes Mellitus

Keywords

diabetes mellitus; cohort study; quality of care; quality indicators, Health care; quality of Health Care; outcome and process assessment; health services research; chronic diseases prevention and management

Outcome Measures

Primary Outcomes (1)

• Process of care indicators and the following outcomes of care: HbA1C, quality of life (QoL), Patient Assessment of Chronic Illness Care (PACIC)

  Baseline and follow up once a year up to 10 years

Other Outcomes (2)

• "Self-management support" measures (glycemic self-monitoring, participation in education classes/groups, self-efficacy, use of the diabetes passport)

  Baseline and follow up once a year up to 10 years

• Knowledge of and participation in the activities/projects of the Programme cantonal Diabète (PcD)

  Baseline and follow up once a year up to 10 years

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Non-institutionalized adult patients with diabetes (≥18 years, type 1 or 2 diabetes, disease duration ≥12 months) who were visiting the pharmacy with a prescription for oral antidiabetic drugs, insulin, glycemic strips or glucose meter, at the time of the recruitment, are eligible for this study.

You may qualify if:

• Diagnosis of diabetes mellitus
• Disease ≥ 12 months
• Age ≥ 18 years
• Residing in the canton of Vaud, Switzerland, non-institutionalized
• Informed consent

You may not qualify if:

• Gestational diabetes mellitus
• Obvious cognitive impairment
• Not speaking or understanding French well enough

Sponsors & Collaborators

• University of Lausanne Hospitals: lead
• Service de la santé publique, Canton de Vaud: collaborator
• Swiss National Science Foundation: collaborator
• Foundation Swiss School of Public Healthplus: collaborator

Study Sites (1)

Center for Primary Care and Public Health (Unisante), University of Lausanne, Switzerland

Lausanne, Switzerland

Location

Related Publications (16)

• Hagon-Traub I, Hirsiger P, Bovet P, Ruiz J, Peytremann-Bridevaux I, Noth C, Hauschild M. Programme cantonal Diabète, présentation du programme. Lausanne: Service de la Santé Publique du canton de Vaud; 2010. [http://www.vd.ch/fileadmin/user_upload/themes/sante_social/services_soins/Diabete/fichiers_pdf/Programme_cantonal.pdf]

  BACKGROUND

• Casillas A, Iglesias K, Flatz A, Burnand B, Peytremann-Bridevaux I. No consistent association between processes-of-care and health-related quality of life among patients with diabetes: a missing link? BMJ Open Diabetes Res Care. 2015 Jan 10;3(1):e000042. doi: 10.1136/bmjdrc-2014-000042. eCollection 2015.

  PMID: 25621176 BACKGROUND

• Collet TH, Taffe P, Bordet J, Burnand B, Peytremann-Bridevaux I. Reproducibility of diabetes quality of care indicators as reported by patients and physicians. Eur J Public Health. 2014 Dec;24(6):1004-9. doi: 10.1093/eurpub/cku011. Epub 2014 Feb 17.

  PMID: 24534326 BACKGROUND

• Flatz A, Casillas A, Stringhini S, Zuercher E, Burnand B, Peytremann-Bridevaux I. Association between education and quality of diabetes care in Switzerland. Int J Gen Med. 2015 Feb 25;8:87-92. doi: 10.2147/IJGM.S77139. eCollection 2015.

  PMID: 25759596 BACKGROUND

• Gijs E, Zuercher E, Henry V, Morin D, Bize R, Peytremann-Bridevaux I. Diabetes care: Comparison of patients' and healthcare professionals' assessment using the PACIC instrument. J Eval Clin Pract. 2017 Aug;23(4):803-811. doi: 10.1111/jep.12720. Epub 2017 Mar 2.

  PMID: 28251768 BACKGROUND

• Iglesias K, Burnand B, Peytremann-Bridevaux I. PACIC Instrument: disentangling dimensions using published validation models. Int J Qual Health Care. 2014 Jun;26(3):250-60. doi: 10.1093/intqhc/mzu042. Epub 2014 Apr 15.

  PMID: 24737833 BACKGROUND

• Rosselet PC, Zuercher E, Pasquier J, Burnand B, Peytremann-Bridevaux I. Impact of forgoing care because of costs on the quality of diabetes care: A three-year cohort study. Eur J Intern Med. 2017 Jun;41:e35-e37. doi: 10.1016/j.ejim.2017.03.007. Epub 2017 Mar 11. No abstract available.

  PMID: 28292557 BACKGROUND

• Zuercher E, Diatta ID, Burnand B, Peytremann-Bridevaux I. Health literacy and quality of care of patients with diabetes: A cross-sectional analysis. Prim Care Diabetes. 2017 Jun;11(3):233-240. doi: 10.1016/j.pcd.2017.02.003. Epub 2017 Mar 11.

  PMID: 28292571 BACKGROUND

• Konstantinidis L, Carron T, de Ancos E, Chinet L, Hagon-Traub I, Zuercher E, Peytremann-Bridevaux I. Awareness and practices regarding eye diseases among patients with diabetes: a cross sectional analysis of the CoDiab-VD cohort. BMC Endocr Disord. 2017 Sep 7;17(1):56. doi: 10.1186/s12902-017-0206-2.

  PMID: 28882117 BACKGROUND

• Bawab N, Zuercher E, Carron T, Chinet L, Bugnon O, Berger J, Peytremann-Bridevaux I. Interest in and use of person-centred pharmacy services - a Swiss study of people with diabetes. BMC Health Serv Res. 2021 Mar 10;21(1):216. doi: 10.1186/s12913-021-06217-6.

  PMID: 33691691 BACKGROUND

• Peytremann-Bridevaux I, Bordet J, Zuercher E, Burnand B. Caractéristiques des patients diabétiques vaudois et évaluation de leur prise en charge : Rapport final (Recrutements 2011 et 2012). Lausanne : Institut universitaire de médecine sociale et préventive, 2013. (Raisons de santé, 211). [http://www.iumsp.ch/Publications/pdf/rds211_fr.pdf]

  RESULT

• Peytremann-Bridevaux I, Bordet J, Burnand B. Diabetes care in Switzerland: good, but perfectible: a population-based cross-sectional survey. BMC Health Serv Res. 2013 Jun 25;13:232. doi: 10.1186/1472-6963-13-232.

  PMID: 23800376 RESULT

• Peytremann-Bridevaux I, Bordet J, Santschi V, Collet TH, Eggli M, Burnand B. Community-based pharmacies: an opportunity to recruit patients? Int J Public Health. 2013 Apr;58(2):319-22. doi: 10.1007/s00038-012-0383-8. Epub 2012 Jul 1. No abstract available.

  PMID: 22752242 RESULT

• Zuercher E, Bordet J, Burnand B, Peytremann-Bridevaux I. CoDiab-VD: protocol of a prospective population-based cohort study on diabetes care in Switzerland. BMC Health Serv Res. 2015 Aug 14;15:329. doi: 10.1186/s12913-015-0991-0.

  PMID: 26272346 RESULT

• Zuercher E, Casillas A, Hagon-Traub I, Bordet J, Burnand B, Peytremann-Bridevaux I. Baseline data of a population-based cohort of patients with diabetes in Switzerland (CoDiab-VD). Swiss Med Wkly. 2014 May 26;144:w13951. doi: 10.4414/smw.2014.13951. eCollection 2014.

  PMID: 24863132 RESULT

• Kosinski C, Zuercher E, Carron T, Chevallereau J, Le Pogam MA, Storari C, Wojtusciszyn A, Peytremann-Bridevaux I. Self-reported perceptions of adults with diabetes regarding their care and health in the time of COVID-19 pandemic in a Swiss region: a cross-sectional study. Swiss Med Wkly. 2024 Dec 5;154:3578. doi: 10.57187/s.3578.

  PMID: 39835917 DERIVED

MeSH Terms

Conditions

Diabetes Mellitus

Condition Hierarchy (Ancestors)

Glucose Metabolism Disorders; Metabolic Diseases; Nutritional and Metabolic Diseases; Endocrine System Diseases

Study Officials

• Isabelle Peytremann Bridevaux, Professor

  Center for Primary Care and Public Health (Unisante), University of Lausanne, Switzerland

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: July 9, 2013
• First Posted: July 17, 2013
• Study Start: September 1, 2011
• Primary Completion: December 1, 2016
• Study Completion: December 1, 2022
• Last Updated: March 14, 2022

Record last verified: 2022-02

Data Sharing

• IPD Sharing: Will share

Locations

CH (1)