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The impact of cancer on diabetes outcomes

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  • Anne Beiter Arreskov
  • Maria Å Olsen
  • Sandra Sinius Pouplier
  • Volkert Siersma
  • Christen L Andersen
  • Søren Friis
  • Niels de Fine Olivarius
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BACKGROUND: Survival from many cancer types is steadily increasing, and as a result, a growing number of cancer patients will live with other chronic diseases, of which diabetes is one of the most prevalent. This study aims to describe the impact of cancer on health outcomes in patients with type 2 diabetes and to compare the effectiveness of a multifactorial intervention in diabetes patients with and without cancer.

METHODS: The randomized controlled trial Diabetes Care in General Practice (DCGP) included 1381 patients newly diagnosed with type 2 diabetes. Patients were randomized to either six years of structured personal diabetes care or routine care. In a post hoc analysis, we followed patients for 19 years in Danish national registries for the occurrence of diabetes-related outcomes. We used Cox regression models to estimate hazard ratios for outcomes.

RESULTS: At diagnosis 48 patients had cancer, and 243 patients were diagnosed with cancer during follow up. Patients with diabetes and cancer had excess all-cause mortality (HR 3.33; 95%CI 2.72-4.06), as well as an increased incidence of myocardial infarction (HR 1.76; 95%CI 1.29-2.39) and any diabetes-related outcome (HR 1.36; 95%CI 1.07-1.71). The intervention reduced the risk of both these endpoints in patients without cancer. Furthermore, there was no statistically significant difference in the effectiveness of the intervention among patients with and without cancer.

CONCLUSIONS: Diabetes patients with cancer had an increased risk of myocardial infarction and any diabetes-related outcome. The observed positive effect of structured personal diabetes care on clinical outcomes did not differ between patients with and without cancer. Attention to and prevention of diabetes complications in patients with both type 2 diabetes and cancer is warranted.

TRIAL REGISTRATION: ClinicalTrials.gov NCT01074762 (February 24, 2010).

OriginalsprogEngelsk
TidsskriftBMC Endocrine Disorders
Vol/bind19
Udgave nummer1
Sider (fra-til)60
ISSN1472-6823
DOI
StatusUdgivet - 11 jun. 2019

ID: 59005480