Influence of cGVHD 6 months after BMT on T-cell function development. (A) Patients with cGVHD (n = 46). (B) Patients without cGVHD (n = 70). y axis, number of patients; x axis, time lapsed post-BMT. The number of patients with normal T-cell function 6 months after BMT was higher among patients without GVHD than with GVHD (55%v 24%; P < .01). See criteria of definition of T-cell functions in Table 2.