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Epidemiol Health > Volume 44; 2022 > Article
Epidemiology and Health 2022;44: e2022055-0.
DOI: https://doi.org/10.4178/epih.e2022055    Published online Jul 5, 2022.
The risk of stroke according to statin medication compliance in older people with chronic periodontitis: an analysis using the Korea National Health Insurance Service-Senior Cohort Database
Seon-Rye Kim1  , Minkook Son2  , Yu-Rin Kim3 
1Department of Healthcare Management, Youngsan University, Yangsan, Korea
2Department of Physiology, College of Medicine, Dong-A University, Busan, Korea
3Department of Dental Hygiene, Silla University, Busan, Korea
Correspondence  Yu-Rin Kim ,Email: dbfls1712@silla.ac.kr
Received: Apr 19, 2022  Accepted after revision: Jul 5, 2022
Abstract
OBJECTIVES:
We investigated the risk of stroke according to statin medication compliance in older people with chronic periodontitis.
METHODS:
Chronic periodontitis patients were extracted from the National Health Insurance Service-Senior Cohort Database from 2002 to 2014. Among 255,056 chronic periodontitis patients, 41,412 patients with statin prescriptions for 28 days or more were included. The study population was divided into the top 25% of medication compliance group (TSG) and the lower 25% of medication compliance group (BSG). After 1:1 propensity score matching was performed, the final number of patients in the BSG and TSG was 6,172 each. To analyze the risk of stroke, a Cox proportional hazard model was performed to calculate hazard ratios (HRs) and 95% confidence intervals (95% CIs) after adjusting for age, sex, income level, hypertension, diabetes, and Charlson comorbidity index.
RESULTS:
In the Kaplan-Meier curve, the disease-free probability was prominently lower in the BSG than in the TSG (p for log-rank= 0.001). The HR in the multivariable-adjusted model for stroke occurrence in the TSG compared to the BSG was 0.79 (95% CI, 0.67 to 0.92; p= 0.002). Subgroup analyses showed significant associations between compliance to statin medication and stroke, especially in female, people 85 years or older, and patients with comorbidities.
CONCLUSIONS:
Increasing compliance to statins may reduce stroke risk in older adults with chronic periodontitis. Therefore, in order to increase medication compliance among older people with chronic periodontitis, it is necessary for medical staff to make efforts to provide effective medication guidance.
Keywords: Ischemic stroke, Periodontitis, Hydroxymethylglutaryl-CoA reductase inhibitors, Compliance, The aged


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