Association between glycaemia risk index ( GRI ) and diabetic retinopathy in type 2 diabetes: A cohort study

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Abstract
Aim: To investigate the association between a new composite metric, glycaemia risk index (GRI), and incident diabetic retinopathy (DR). Methods: A total of 1204 adults with type 2 diabetes without DR at baseline were included between 2005 and 2019 from a single centre in Shanghai, China. GRI was obtained from continuous glucose monitoring data at baseline. Cox proportion hazard regression analysis was used to assess the association between GRI and the risk of incident DR. Results: During a median follow‐up of 8.4 years, 301 patients developed DR. The multivariable‐adjusted hazard ratios (HRs) for incident DR across ascending GRI quartiles (≤14 [reference], 15 ~ 28, 29 ~ 47 and > 47) were 1.00, 1.05 (95% CI 0.74‐1.48), 1.33 (95% confidence interval [CI] 0.96‐1.84) and 1.53 (95% CI 1.11‐2.11), respectively. For each 1‐SD increase in GRI, the risk of DR was increased by 20% (HR 1.20, 95% CI 1.07‐1.33) after adjustment for confounders. Conclusions: In patients with type 2 diabetes, higher GRI is associated with an increased risk of incident DR. GRI has the potential to be a valuable clinical measure, which needs to be further explored in future studies.
Funding Information
  • Program of Shanghai Academic Research Leader (22XD1402300)

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