Purpose: To investigate and compare how patients with diabetes mellitus and doctors rate the importance of outcomes used as part of composite endpoints in clinical diabetes trials. Secondly, to compare the ratings of outcomes between patients with low and high education.

Methods: Using a pre-piloted questionnaire, patients with diabetes and doctors working with diabetes were asked to rate the importance of 36 different outcomes commonly used in trials assessing intervention effects in patients with diabetes. The respondents were asked to rate individual outcomes as being either critical, of major importance, of moderate importance, or of minor importance.

Results: The study population consisted of 139 patients with a mean age of 56.6 years and an average duration of diabetes for 13.6 years and 45 doctors with a mean time of practice of 19.6 years. There was no difference between patients' and doctors' rating of risk of mortality and non-fatal myocardial infarction, and percutaneous coronary intervention (all p-values > 0.34). Non-fatal stroke, admission for heart failure or angina was perceived more severely by patients compared to doctors (all p-values < 0.03). Patients rated risk of foot-ulcers, amputations and quality of life as more important compared to doctors (p-values < 0.01).

Conclusion: The current study suggest that patients and doctors weigh some diabetic outcomes used as part of composite endpoints in clinical diabetes trials differently. These findings call for more studies on patient reported outcomes and patient education for improved personal care.

Highlights: • We performed this study to assess how patients and practicing physicians rate the importance of outcomes commonly used in diabetes trials.• We found that patients and doctors rate the importance of some outcomes used in clinical diabetes trials differently.• These findings suggest that shared decision making is pivotal when taking clinical decisions and that future diabetes studies incorporate end points relevant to both patients and clinicians and do not combine end points which are not equally important.

Original languageEnglish
JournalJournal of Diabetes and Metabolic Disorders
Issue number1
Pages (from-to)51-59
Number of pages9
Publication statusPublished - Jun 2022


  • Clinical trials
  • Education
  • Macrovascular disease
  • Microvascular disease
  • Other complications


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