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Incidence of Diabetes After Cancer Development: A Korean National Cohort Study.


ABSTRACT:

Importance

Diabetes is an established risk factor for developing cancer. A limited body of evidence also suggests that cancer can increase the risk of developing new cases of diabetes, but the evidence is inconclusive.

Objective

To evaluate whether the development of cancer is associated with increasing risk of subsequent diabetes.

Design, setting, and participants

This cohort study included a nationally representative sample of the Korean general population observed for up to 10 years (January 1, 2003, to December 31, 2013). A total of 524?089 men and women 20 to 70 years of age without diabetes and with no history of cancer at baseline were included.

Exposures

Incident cancer (time-varying exposure).

Main outcomes and measures

Incident type 2 diabetes using insurance claim codes.

Results

During 3?492?935.6 person-years of follow-up (median follow-up, 7.0 years) in 494?189 individuals (50.0% female; mean [SD] age, 41.8 [12.5] years), 15?130 participants developed cancer and 26?610 participants developed diabetes. After adjustment for age, sex, precancer diabetes risk factors, metabolic factors, and comorbidities, the hazard ratio (HR) for diabetes associated with cancer development was 1.35 (95% CI, 1.26-1.45; P?Conclusions and relevanceIn this large Korean cohort, cancer development increased the risk of subsequent diabetes. These data provide evidence that cancer is associated with an increased risk of diabetes in cancer survivors independent of traditional diabetes risk factors. Physicians should remember that patients with cancer develop other clinical problems, such as diabetes, with higher frequency than individuals without cancer, and should consider routine diabetes screening in these patients.

SUBMITTER: Hwangbo Y 

PROVIDER: S-EPMC6143049 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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<h4>Importance</h4>Diabetes is an established risk factor for developing cancer. A limited body of evidence also suggests that cancer can increase the risk of developing new cases of diabetes, but the evidence is inconclusive.<h4>Objective</h4>To evaluate whether the development of cancer is associated with increasing risk of subsequent diabetes.<h4>Design, setting, and participants</h4>This cohort study included a nationally representative sample of the Korean general population observed for up  ...[more]

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