Skip to main navigation menu Skip to main content Skip to site footer

Original article

Vol. 144 No. 2122 (2014)

Baseline data of a population-based cohort of patients with diabetes in Switzerland (CoDiab-VD)

  • Emilie Zuercher
  • Alejandra Casillas
  • Isabelle Hagon-Traub
  • Julie Bordet
  • Bernard Burnand
  • Isabelle Peytremann-Bridevaux
Cite this as:
Swiss Med Wkly. 2014;144:w13951


QUESTIONS UNDER STUDY: To describe a population-based sample of patients with diabetes and the quality of their care in the canton of Vaud, Switzerland, as a baseline measure for the evaluation of the “Programme cantonal Diabète”.

METHODS: We conducted a self-administered paper-based questionnaire survey. Noninstitutionalised adult (aged ≥18 years) patients with diabetes diagnosed for at least 1 year and residing in the canton of Vaud were recruited by community pharmacies. Women with gestational diabetes, people with obvious cognitive impairment or people not sufficiently fluent in French were excluded. Primary outcomes were recommended processes-of-care and outcomes of care (glycosylated haemoglobin [HbA1c], generic and disease-specific health-related quality of life (HRQoL), overall care score in relation to the Chronic Care Model). Other measures included diabetes education, self-management support and self-efficacy, health status, health behaviour and demographics.

RESULTS: A total of 519 patients with diabetes were included. Whereas the mean HbA1c level was 7.3% (n = 177, 95% confidence interval 7.1–7.5), diabetes-specific processes-of-care and influenza vaccination were reported by less than two-thirds of the patients. Physical activity and diet recommendations results mirrored patients’ difficulties with their management in daily life and diabetes-specific HRQoL was worst in the dimensions relative to diet (eating and drinking) and sex life. A minority of patients reported ever having participated in diabetes education courses (32.8%). Overall, patients were satisfied with their care and the support they received.

CONCLUSIONS: This study provides a broad picture of the experiences of people living with diabetes in the canton of Vaud. It shall guide the development of targeted interventions within the “Programme cantonal Diabète”.

Trial registration number:, identifier NCT01902043.


  1. Smith KJ, Page V, Gariepy G, Beland M, Badawi G, Schmitz N. Self-rated diabetes control in a Canadian population with type 2 diabetes: associations with health behaviours and outcomes. Diabetes Res Clin Pract. 2012;95(1):162–8.
  2. Grandy S, Fox KM. Change in health status (EQ-5D) over 5 years among individuals with and without type 2 diabetes mellitus in the SHIELD longitudinal study. Health Qual Life Outcomes. 2012;10(1):99.
  3. Glasgow RE. Tackling the hard problems: long-term maintenance. Curr Diab Rep. 2005;5(2):113.
  4. Rey A, Thoenes M, Fimmers R, Meier CA, Bramlage P. Diabetes prevalence and metabolic risk profile in an unselected population visiting pharmacies in Switzerland. Vasc Health Risk Manag. 2012;8:541–7.
  5. Firmann M, Mayor V, Vidal PM, Bochud M, Pecoud A, Hayoz D, et al. The CoLaus study: a population-based study to investigate the epidemiology and genetic determinants of cardiovascular risk factors and metabolic syndrome. BMC cardiovascular disorders. 2008;8:6.
  6. Sebo P, Abetel G, Stalder H, Bovier PA. Importance of lifestyle counselling by primary care physicians for diabetic patients. Swiss Med Wkly. 2006;136(35–36):566–73.
  7. Groupe de travail de la Fondation de l’Association Suisse du Diabète: La déclaration de St. Vincent: une enquête sur la prise en charge des diabétiques en Suisse. Bull Med Suisse. 1996;15:628–35.
  8. Bovier PA, Sebo P, Abetel G, George F, Stalder H. Adherence to recommended standards of diabetes care by Swiss primary care physicians. Swiss Med Wkly. 2007;137(11–12):173–81.
  9. Burgmann K, Fatio SA, Jordi B, Rutishauser J. Medical care of type 2 diabetes mellitus in light of international and national recommendations: a retrospective analysis. Swiss Med Wkly. 2013;143:w13871.
  10. Donald M, Dower J, Ware R, Mukandi B, Parekh S, Bain C. Living with diabetes: rationale, study design and baseline characteristics for an Australian prospective cohort study. BMC Public Health. 2012;12:8.
  11. Griffiths F, Anto N, Chow E, Manazar U, Van Royen P, Bastiaens H. Understanding the diversity and dynamics of living with diabetes: a feasibility study focusing on the case. Chronic Illn. 2007;3(1):29–45.
  12. McClain MR, Wennberg DE, Sherwin RW, Steinmann WC, Rice JC. Trends in the diabetes quality improvement project measures in Maine from 1994 to 1999. Diabetes care. 2003;26(3):597–601.
  13. Price JF, Reynolds RM, Mitchell RJ, Williamson RM, Fowkes FGR, Deary IJ, et al. The Edinburgh Type 2 Diabetes Study: study protocol. BMC Endocr Disord. 2008;8:18.
  14. Thompson W, Wang H, Xie M, Kolassa J, Rajan M, Tseng CL, et al. Assessing quality of diabetes care by measuring longitudinal changes in hemoglobin A1c in the Veterans Health Administration. Health services research. 2005;40(6 Pt 1):1818–35.
  15. Gibbons E, Fitzpatrick R. A structured review of patient-reported outcome measures for people with diabetes: an update 2009. Oxford; 2009.
  16. Rubin RR, Peyrot M, Siminerio LM. Health care and patient-reported outcomes: results of the cross-national Diabetes Attitudes, Wishes and Needs (DAWN) study. Diabetes care. 2006;29(6):1249–55.
  17. Hibbard JH, Greene J. What the evidence shows about patient activation: better health outcomes and care experiences; fewer data on costs. Health affairs. 2013;32(2):207–14.
  18. Rubin RR, Peyrot M. Quality of Life and Diabetes. Diabetes Metab Res Rev. 1999;15:205–18.
  19. Wexler DJ, Grant RW, Wittenberg E, Bosch JL, Cagliero E, Delahanty L, et al. Correlates of health-related quality of life in type 2 diabetes. Diabetologia. 2006;49(7):1489–97.
  20. Programme cantonal Diabète. 2013 [cited; Available from:
  21. 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. 2012 Jul 1.
  22. Bourdel-Marchasson I, Druet C, Helmer C, Eschwege E, Lecomte P, Le-Goff M, et al. Correlates of health-related quality of life in French people with type 2 diabetes. Diabetes Res Clin Pract. 2013 Jul 4.
  23. Grandy S, Chapman RH, Fox KM, Group SS. Quality of life and depression of people living with type 2 diabetes mellitus and those at low and high risk for type 2 diabetes: findings from the Study to Help Improve Early evaluation and management of risk factors Leading to Diabetes (SHIELD). Int J Clin Pract. 2008;62(4):562–8.
  24. Collins M. Quality of life and quality of care in patients with diabetes experiencing different models of care. Diabetes Care. 2009;32(4):603–5.
  25. Strychar I, Elisha B, Schmitz N. Type 2 Diabetes Self-Management: Role of Diet Self-Efficacy. Can J Diabetes. 2012;36(6):337–44.
  26. 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;13:232.
  27. Kadirvelu A, Sadasivan S, Ng SH. Social support in type II diabetes care: a case of too little, too late. Diabetes, metabolic syndrome and obesity: targets and therapy. 2012;5:407–17.
  28. Schiøtz ML, Bøgelund M, Almdal T, Jensen BB, Willaing I. Social support and self-management behaviour among patients with Type 2 diabetes. Diabetic Medicine. 2012;29(5):654–61.
  29. Stone MA, Charpentier G, Doggen K, Kuss O, Lindblad U, Kellner C, et al. Quality of Care of People With Type 2 Diabetes in Eight European Countries: Findings from the Guideline Adherence to Enhance Care (GUIDANCE) study. Diabetes Care. 2013;36(9):2628–38.
  30. Kaiser A, Vollenweider P, Waeber G, Marques-Vidal P. Prevalence, awareness and treatment of type 2 diabetes mellitus in Switzerland: the CoLaus study. Diabetic medicine: a journal of the British Diabetic Association. 2012;29(2):190–7.

Most read articles by the same author(s)