Influence of T-cell function status 6 months after BMT on B-cell function development. At 6 months post-BMT, 22 of 47 patients with normal T-cell function (ie, T+) had a normal B-cell function (ie, B+), whereas 7 of 67 patients with incomplete or absent T-cell reconstitution (ie, T low or T−) had a normal B-cell function (P = .01). y axis, number of patients; x axis, time lapsed post-BMT. See criteria of definition of T- and B-cell functions in Table 2.