Type 1 diabetes

Association between daily insulin Dose, cancer Incidence, and mortality in type 1 diabetes patients

Diabetes Res Clin PractPublished Retrospective cohort study

Authors' conclusion

Higher insulin doses may protect against cancer and reduce mortality, likely due to improved glycemic control. While insulin's mitogenic effects raise concerns, poor glycemic control itself is a known cancer risk factor. These findings suggest that optimizing insulin therapy in type 1 diabetes may outweigh potential oncogenic risks. Future research should validate these results in broader populations and explore underlying mechanisms to refine insulin dosing strategies for improved long-term outcomes.

Study context

Population
Patients with T1D, Taiwan's National Health Insurance Research Database and Cancer Registry
Participants
10,248 patients
Exposure
Higher vs lower daily insulin dose
Outcome
Cancer incidence and all-cause mortality
Methodological detailsCox proportional hazards models, sensitivity analyses using Poisson regression
  • Cox proportional hazards models
  • Sensitivity analyses using Poisson regression

Main finding

As reported in the abstract

Cancer risk lower with higher insulin doses: HR

0.42 (0.28-0.64) (95% CI)

All-cause mortality reduced with higher insulin doses: HR

0.35 (0.26-0.49) (95% CI)

Observational data: associations, not effects.

Further findings

Sensitivity analyses confirmed these findings

Original publication

Association between daily insulin Dose, cancer Incidence, and mortality in type 1 diabetes patients. Diabetes Res Clin Pract. Published 4 June 2025. doi:10.1016/j.diabres.2025.112290

Composed by AI from the published abstract and checked against it. How Briefs are made →

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