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Liver Cirrhosis Increases the Risk of Herpes Zoster: A Nationwide Population-Based Cohort Study
Dongsub Jeon1, Ye-Jee Kim2, Seonok Kim2
1Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Introduction:
Limited data are available regarding the association between liver cirrhosis (LC) and the risk of herpes zoster (HZ). This study aimed to determine the risk of HZ in patients with LC.
Methods:
HZ was defined as the presence of the International Classification of Diseases-10th revision code for HZ and concomitant prescription of antiviral medication. The incidence rates and standardized incidence ratios (SIRs) of HZ in patients with LC were analyzed using data from the Health Insurance Review and Assessment Service in Korea claims database from 2009 to 2019.
Results:
A total of 504,986 Korean patients with LC were included. The mean age was 52.4 years, and 60.8% were men. Chronic hepatitis B was the most common cause of LC. The incidence rates for HZ and HZ-related hospitalization were 21.6 of 1,000 and 1.81 of 1,000 person-years, respectively. The SIRs for HZ and HZ-related hospitalization were 1.09 (95% confidence interval [CI]: 1.08-1.09) and 1.48 (95% CI: 1.44-1.52), respectively, which were significantly higher than those in the general population. Patients with LC aged 20-29, 30-39, and 40-49 years had SIRs for HZ of 1.41 (95% CI: 1.33-1.48), 1.16 (1.13-1.19), and 1.17 (1.13-1.19), respectively. In multivariable analysis, woman (adjusted hazard ratio [AHR]: 1.48), steroid (AHR: 1.20), immunosuppressant use (AHR: 1.26), and combined comorbidities were associated with an increased risk of HZ among patients with LC.
Discussion:
Patients with LC, particularly those who are not currently recommended for HZ vaccination, were at an increased risk of HZ and HZ-related hospitalization compared with the general Korean population.
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