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Derivation and External Validation of a Clinical Model to Predict Heart Failure Onset in Patients with Incident Diabetes

Mamas

Authors



Abstract

OBJECTIVE

Heart failure (HF) often develops in patients with diabetes and is recognized for its role in increased cardiovascular morbidity and mortality in this population. Most existing models predict risk in patients with prevalent rather than incident diabetes and fail to account for sex differences in HF risk factors. We derived sex-specific models in Ontario, Canada to predict HF at diabetes onset and externally validated these models in the U.K.

RESEARCH DESIGN AND METHODS

Retrospective cohort study using international population-based data. Our derivation cohort comprised all Ontario residents aged >= 18 years who were diagnosed with diabetes between 2009 and 2018. Our validation cohort comprised U.K. patients aged >= 35 years who were diagnosed with diabetes between 2007 and 2017. Primary outcome was incident HF. Sex-stratified multivariable Fine and Gray subdistribution hazard models were constructed, with death as a competing event.

RESULTS

A total of 348,027 Ontarians (45% women) and 54,483 U.K. residents (45% women) were included. At 1, 5, and 9 years, respectively, in the external validation cohort, the C-statistics were 0.81 (95% CI 0.79-0.84), 0.79 (0.77-0.80), and 0.78 (0.76-0.79) for the female-specific model; and 0.78 (0.75-0.80), 0.77 (0.76-0.79), and 0.77 (0.75-0.79) for the male-specific model. The models were well-calibrated. Age, rurality, hypertension duration, hemoglobin, HbA(1c), and cardiovascular diseases were common predictors in both sexes. Additionally, mood disorder and alcoholism (heavy drinker) were female-specific predictors, while income and liver disease were male-specific predictors.

CONCLUSIONS

Our findings highlight the importance of developing sex-specific models and represent an important step toward personalized lifestyle and pharmacologic prevention of future HF development.

Citation

Mamas. (2022). Derivation and External Validation of a Clinical Model to Predict Heart Failure Onset in Patients with Incident Diabetes. Diabetes Care, 2737-2745. https://doi.org/10.2337/dc22-0894

Acceptance Date Aug 20, 2022
Publication Date Nov 1, 2022
Journal Diabetes Care
Print ISSN 0149-5992
Publisher American Diabetes Association
Pages 2737-2745
DOI https://doi.org/10.2337/dc22-0894
Publisher URL https://diabetesjournals.org/care/article/45/11/2737/147606/Derivation-and-External-Validation-of-a-Clinical