Type 2 & other diabetes

Prospective cohort study of cancer incidence and related factors among patients with type 2 diabetes in Japan

Diabetes Res Clin PractPublished Prospective cohort study

Authors' conclusion

Sex, age, abdominal obesity, hypertension, and dyslipidemia may have significant influence cancer risk in Japanese patients with type 2 diabetes.

Study context

Population
Outpatients receiving treatment for T2D enrolled in the Nishinomiya Study, Japan
Participants
5,210 outpatients
Outcome
Association of baseline clinical characteristics with cancer incidence
Follow-up
Mean 4.8 years

Main finding

As reported in the abstract

Newly diagnosed with cancer
411 participants
Cancer incidence significantly higher in men than in women (Kaplan-Meier)
p < 0.0001
Cancer incidence significantly higher with vs without hypertension (Kaplan-Meier)
p < 0.0001
Cancer incidence significantly lower with vs without dyslipidemia (Kaplan-Meier)
p < 0.0001
Predictor (Cox): higher age
HR 1.04
Predictor (Cox): male sex
HR 1.58
Predictor (Cox): greater waist circumference
HR 1.02
Predictor (Cox): hypertension
HR 1.40
Predictor (Cox): absence of dyslipidemia
HR 0.75

Observational data: associations, not effects.

Original publication

Prospective cohort study of cancer incidence and related factors among patients with type 2 diabetes in Japan. Diabetes Res Clin Pract. Published 17 July 2026. doi:10.1016/j.diabres.2026.113449

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