Recombinant zoster vaccine effectiveness against HZO by age, sex, race/ethnicity and history of ZVL from 2018 to 2019
CI = Confidence interval.
ZVL = Zoster vaccine live.
a Values are reported as %.
b Vaccine effectiveness was adjusted using inverse probability weighting for age, sex, race, region, prior zoster vaccine live, antiviral use, healthcare utilization, insurance type, and Charlson comorbidity index.
c Vaccine effectiveness was 100% in the subgroup, but the confidence interval could not be calculated because there were no cases of HZO in the vaccinated cohort.
d The unknown race/ethnicity category includes individuals with either unknown or missing race/ethnicity.