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Table 3 Incidence of HBV reactivation in each observation year

From: Risk stratification and clinical course of hepatitis B virus reactivation in rheumatoid arthritis patients with resolved infection: final report of a multicenter prospective observational study at Japanese Red Cross Hospital

 Year of observationNumber of casesSample size (person-years)Incidence (/100 person-years)Use of NAAs
Reactivated cases12311272.045
2179771.743
397791.162
485651.421
Total5734481.6511
Patients with HBV DNA ≥ 2.1 log copies/mL1311270.274
259960.502
358020.621
425990.331
Total1535240.438
  1. Abbreviations: HBV DNA hepatitis B virus DNA, NAA nucleic acid analog