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Background Studies have demonstrated low hepatitis B virus (HBV) vaccine series completion among persons with human immunodeficiency virus (HIV). Methods We conducted a retrospective record review of persons entering HIV care at 2 clinics in Houston, Texas, between 2010 and 2018. Kaplan-Meier curves summarized time to receipt of HBV vaccines for those eligible for vaccination. We estimated the proportions of patients who had received 1, 2, or 3 HBV vaccine doses at 12 and 24 months after entry to care. A Prentice Williams and Peterson total time model was used to evaluate associations between patient characteristics and time to vaccination. Results Of the 5357 patients who entered care, 2718 were eligible for HBV vaccination. After 2 years of follow-up, 51.2% of those eligible had received 1 HBV vaccine, 43.2% had received 2, and 28.4% received 3 vaccines. With adjustment for significant cofactors, patients whose CD4 cell count was ≥200/μL (adjusted hazard ratio [aHR], 1.43 [95% confidence interval (CI), 1.29–1.59]) and transgender patients (1.49 [1.08–2.04]) received any given vaccine dose sooner than those with CD4 cell counts <200/μL or cisgender patients, respectively. Compared with non-Hispanic whites, Hispanic patients were vaccinated sooner (aHR, 1.28 [95% CI, 1.07–1.53]). Those with an active substance use history had a significantly longer time to vaccination than those with no substance use history (aHR, 0.73 [95% CI,.62–.85]). Conclusions Strategies are needed to increase HBV vaccine completion rates in our study population, particularly among those with CD4 cell counts <200/μL or with a substance use disorder. [ABSTRACT FROM AUTHOR]