Diabetes complications

Long-term Cumulative Incidence of Clinically Diagnosed Retinopathy in the Finnish Diabetes Prevention Study

J Clin Endocrinol MetabPublished Long-term follow-up of the Finnish Diabetes Prevention Study randomised trial

Primary result · Cumulative incidence of clinically diagnosed DRResult — go to the resultOdds ratio 1.15 95% CI 0.61–2.21

Authors' conclusion

A higher cumulative HbA1c was significantly associated with a higher risk of retinopathy. No evidence was found for a beneficial effect of a 4-year lifestyle intervention on the long-term occurrence of clinical DR during a median of 22-year follow-up.

Study context

Population
Individuals with impaired glucose tolerance (IGT) from the Finnish Diabetes Prevention Study (DPS), mean age 55 (range 40–64 years) at study onset
Participants
505 individuals
Comparison
Lifestyle intervention vs usual care control
  • Interventionn = 257
  • Controln = 248reference
Primary endpoint
Cumulative incidence of clinically diagnosed diabetic retinopathy (DR)
Follow-up
Median 22 years
Methodological detailsmedian 22-year follow-up, national hospital register outcome ascertainment, Retinopathy diagnoses from the Finnish national hospital Care Register for Health
  • Median 22-year follow-up
  • National hospital register outcome ascertainment
  • Retinopathy diagnoses from the Finnish national hospital Care Register for Health

Primary result

As reported in the abstract

median 22-year follow-up

Odds ratio

1.15

95% CI 0.61–2.21

Events by treatment group

Interventionvs Control
OR 1.15 (95% CI 0.61–2.21)

Further findings

OutcomeDeveloped diabetesNo diabetesOR (95% CI)
Retinopathy diagnosis: developed diabetes during follow-upvs notAdjusted for group, age, sex; not statistically significant33/349 events9/156 events1.86 (0.89–4.28)

Higher cumulative hemoglobin A1c (HbA1c) and risk of retinopathy

HR for retinopathy with higher cumulative HbA1c (95% posterior interval 1.02-1.88; adjusted for group, age, sex)
1.4
  • Significant association

Original publication

Long-term Cumulative Incidence of Clinically Diagnosed Retinopathy in the Finnish Diabetes Prevention Study. J Clin Endocrinol Metab. Published 25 April 2024. doi:10.1210/clinem/dgae287

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