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

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ClinicalTrials.gov Identifier: NCT01902043
Recruitment Status : Active, not recruiting
First Posted : July 17, 2013
Last Update Posted : May 13, 2019
Sponsor:
Collaborators:
Service de la santé publique, Canton de Vaud
Swiss National Science Foundation
Foundation Swiss School of Public Healthplus
Information provided by (Responsible Party):
Peytremann Bridevaux Isabelle, University of Lausanne Hospitals

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.


Condition or disease
Diabetes Mellitus

  Show Detailed Description

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Study Type : Observational
Actual Enrollment : 1033 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: CoDiab-VD: a Population-based Cohort on Quality of Care of Patients With Diabetes in the Canton of Vaud (Switzerland)
Actual Study Start Date : September 2011
Actual Primary Completion Date : December 2016
Estimated Study Completion Date : December 2021



Primary Outcome Measures :
  1. Process of care indicators and the following outcomes of care: HbA1C, quality of life (QoL), Patient Assessment of Chronic Illness Care (PACIC) [ Time Frame: Baseline and follow up once a year up to 10 years ]

Other Outcome Measures:
  1. "Self-management support" measures (glycemic self-monitoring, participation in education classes/groups, self-efficacy, use of the diabetes passport) [ Time Frame: Baseline and follow up once a year up to 10 years ]
  2. Knowledge of and participation in the activities/projects of the Programme cantonal Diabète (PcD) [ Time Frame: Baseline and follow up once a year up to 10 years ]


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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
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.
Criteria

Inclusion Criteria:

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

Exclusion Criteria:

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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01902043


Locations
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Switzerland
University of Lausanne Hospitals
Lausanne, Switzerland
Sponsors and Collaborators
University of Lausanne Hospitals
Service de la santé publique, Canton de Vaud
Swiss National Science Foundation
Foundation Swiss School of Public Healthplus
Investigators
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Principal Investigator: Isabelle Peytremann Bridevaux, Professor Center for Primary Care and Public Health (Unisanté) - University of Lausanne

Publications of Results:
Other Publications:
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]

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Responsible Party: Peytremann Bridevaux Isabelle, Professor, University of Lausanne Hospitals
ClinicalTrials.gov Identifier: NCT01902043     History of Changes
Other Study ID Numbers: CoDiab-VD-151/11
First Posted: July 17, 2013    Key Record Dates
Last Update Posted: May 13, 2019
Last Verified: May 2019
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes

Keywords provided by Peytremann Bridevaux Isabelle, University of Lausanne Hospitals:
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

Additional relevant MeSH terms:
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Diabetes Mellitus
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases