Analysis of Vascular Event Risk After Herpes Zoster From 2007 to 2014 US Insurance Claims Data.

Journal: 2019/April - Mayo Clinic Proceedings

ISSN: 1942-5546

DOI: 10.1016/j.mayocp.2018.12.025

Abstract:

To estimate the risk of transient ischemic attack (TIA), stroke, and myocardial infarction in periods covering 4 weeks before to 52 weeks after herpes zoster (HZ) diagnosis in US adults.This retrospective study (GSK study identifier: HO-15-15771) with matched cohorts used the Truven Health MarketScan Commercial and Medicare claims data set linked with obesity and smoking status information. Patients 18 years and older at the date of HZ diagnosis and 1-year pre- and post-HZ diagnosis continuous insurance enrollment (from January 1, 2007, through December 31, 2014) were propensity score matched to controls in terms of demographic characteristics, risk factors for vascular events, other comorbid disorders, general health, obesity, and smoking status. A post hoc sensitivity analysis was performed not matching for obesity and smoking status information. Adjusted incidence rate ratios (IRRs) were estimated using multivariate Poisson models during an aggregate period (1-month before and after the index date).A total of 23,339 patients with HZ were matched to 46,378 controls (mean age, 56 years; 45,173 [65%] women). During the aggregate period, patients with HZ were statistically significantly more likely to suffer a TIA: IRRs for all patients and patients aged 18 to 49 years were 1.56 (95% confidence interval [CI], 1.13-2.15) and 5.12 (95% CI, 1.37-19.10), respectively (P<.05); the respective IRRs for stroke were 1.40 (95% CI, 0.93-2.11) and 8.12 (95% CI, 0.93-71.27). In the sensitivity analysis, IRRs for TIA and stroke were statistically significantly increased regardless of age.Herpes zoster was associated with an increased risk of composite events, TIA, and stroke in adults in the period around diagnosis. More research on the HZ and vascular risk association is needed.HO-15-15771.

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