a)Number of patients that could be investigated for each variable. b)95% CI. c)Peak titer <2 BU/mL. d)Peak titer 2 to <5 BU/mL. e)Peak titer 5 to <10 BU/mL. f)Peak titer ≥10 BU/mL.
Abbreviations: INH, inhibitor; BU, Bethesda unit; CI, confidence interval.