Regional variations of cardiovascular risk in gout patients: a nationwide cohort study in Korea
Hyun Jung Kim1, Byeongzu Ghang2, Jinseok Kim2
1Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea.
Insights
Regional variations in cardiovascular risk exist for gout patients in South Korea. Specific regions show increased risks for myocardial infarction and cerebral infarction, necessitating targeted screening.
Area of Science:
- Cardiovascular epidemiology
- Rheumatology
- Public health
Background:
- Gout is a common condition associated with increased cardiovascular risk.
- Understanding regional variations in cardiovascular risk among gout patients in South Korea is crucial for public health initiatives.
Purpose of the Study:
- To investigate the geographical disparities in major cardiovascular events (myocardial infarction, cerebral infarction, cerebral hemorrhage) among patients diagnosed with gout in South Korea.
- To identify specific regions with elevated cardiovascular risks in the gout population.
Main Methods:
- A nationwide cohort study utilizing the Korean National Health Insurance claims database and National Health Screening Program data.
- Inclusion of 231,668 patients aged 20-90 years newly diagnosed with gout after January 2012.
- Adjustment for pre-diagnosis cardiovascular risk factors to assess relative risks of incident cardiovascular events across different regions.
Main Results:
- Significant regional differences in cardiovascular risk profiles were observed among gout patients.
- Gout patients in Jeolla/Gwangju region showed a significantly higher risk of myocardial infarction (aHR, 1.27).
- Elevated risks for cerebral infarction were noted in gout patients from Gangwon (aHR, 1.38), Jeolla/Gwangju (aHR, 1.41), and Gyeongsang/Busan/Daegu/Ulsan (aHR, 1.37) regions.
Conclusions:
- Regional variations in cardiovascular risk and associated factors are evident in South Korean gout patients.
- Healthcare providers should proactively screen gout patients for cardiovascular risk profiles to enable timely diagnosis and management.
- Geographic-specific risk stratification may improve cardiovascular event prevention strategies in gout patients.
Objective:
The extent of regional variations in cardiovascular risk and associated risk factors in patients with gout in South Korea remains unclear. Therefore, we aimed to investigate the risk of major cardiovascular events in gout patients in different regions.
Methods:
This was a nationwide cohort study based on the claims database of the Korean National Health Insurance and the National Health Screening Program. Patients aged 20 to 90 years newly diagnosed with gout after January 2012 were included. After cardiovascular risk profiles before gout diagnosis were adjusted, the relative risks of incident cardiovascular events (myocardial infarction, cerebral infarction, and cerebral hemorrhage) in gout patients in different regions were assessed.
Results:
In total, 231,668 patients with gout were studied. Regional differences in cardiovascular risk profiles before the diagnosis were observed. Multivariable analysis showed that patients with gout in Jeolla/Gwangju had a significantly high risk of myocardial infarction (adjusted hazard ratio [aHR], 1.27; 95% confidence interval [CI], 1.02~1.56; p=0.03). In addition, patients with gout in Gangwon (aHR, 1.38; 95% CI, 1.09~1.74; p<0.01), Jeolla/Gwangju (aHR, 1.41; 95% CI, 1.19~1.67; p<0.01), and Gyeongsang/Busan/Daegu/Ulsan (aHR, 1.37; 95% CI, 1.19~1.59; p<0.01) had a significantly high risk of cerebral infarction.
Conclusion:
We found there were regional differences in cardiovascular risk and associated risk factors in gout patients. Physicians should screen gout patients for cardiovascular risk profiles in order to facilitate prompt diagnosis and treatment.
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