Effectiveness of SARS‐CoV‐2 vaccines on hemodialysis patients in Japan: A nationwide cohort study

Introduction This study compared the outcomes of dialysis patients who received SARS‐CoV‐2 vaccine with those who did not use data from the Japanese COVID‐19 registry. Methods A total of 1260 dialysis patients with confirmed positive SARS‐CoV‐2 infection was included in this study. Patients were divided into two groups: patients who experienced breakthrough infection and those who were unvaccinated. The need of oxygen supplementation and mortality risks were compared using multivariate logistic regression analysis. Results The mortality rate was 24.2% in unvaccinated patients and 8.6% in breakthrough patients. The odds ratio of need of oxygen supplementation in the breakthrough patients relative to unvaccinated patients was 0.197. The hazard ratio of mortality in the breakthrough patients relative to unvaccinated patients was 0.464. Conclusion Our prospective observational study showed that SRAS‐CoV‐2 vaccination in hemodialysis patients is vital for reducing need of oxygen supplementation and mortality risk.