Affiliation:
1. Division of Preventive Medicine Chi Mei Medical Center Tainan Taiwan
2. Department of Medical Laboratory Sciences and Biotechnology Fooyin University Kaohsiung Taiwan
3. Division of Biostatistics and Epidemiology Cincinnati Children's Medical Center Cincinnati Ohio USA
4. Department of Nutrition Chi Mei Medical Center Tainan Taiwan
5. Department of Internal Medicine Chi Mei Medical Center Tainan Taiwan
6. Department of Psychiatry Chi Mei Medical Center Tainan Taiwan
7. Department of Intensive Care Medicine Chi Mei Medical Center Tainan Taiwan
8. School of Medicine, College of Medicine National Sun Yat‐sen University Kaohsiung Taiwan
Abstract
AbstractAlthough the recombinant zoster vaccine (RZV) has demonstrated efficacy in reducing the risk of herpes zoster (HZ) for individuals aged 50 years and older, its effectiveness in patients with chronic obstructive pulmonary disease (COPD) remains uncertain. This study was conducted to assess the effect of RZV on the risk of HZ in COPD patients. A multi‐institutional propensity score‐matched retrospective cohort study was conducted using the TriNetX Research network, including individuals aged 40 years or older with COPD from January 1, 2018, to December 31, 2022. Patients with a history of HZ or prior zoster vaccination were excluded. The primary outcome was HZ occurrence, with secondary outcomes including severe and nonsevere HZ. After propensity score matching, each 17 431 patients receiving RZV and unvaccinated patients were included. The vaccinated group had a significantly lower risk of HZ compared to the unvaccinated group (HR, 0.62; [95% confidence intervals] 95% CI, 0.51–0.75, p < 0.01). Similar risk reductions were observed for nonsevere HZ (HR, 0.61; 95% CI, 049–0.75, p < 0.01) and severe HZ (HR, 0.53; 95% CI, 0.38–0.73, p < 0.01). Further subgroup analyses demonstrated consistent risk reductions across age (50–59, 60–69, 70–79, and ≥80 years), sex, and comorbidities, except for individual aged 40–49 years. This study confirms the effectiveness of RZV in reducing HZ risk in patients with COPD aged 50 years and older, supporting its administration in this population. However, vaccination rates remain low, highlighting the need for improved vaccination strategies in this high‐risk group. Efforts to enhance vaccine uptake are warranted to reduce HZ morbidity.