Fig. 2.

Frequencies of peripheral blood CD4+CD25^hi+CD39+ Treg at baseline and 3 months in patients who relapsed or were relapse-free at 9 months. a There was a significant difference in the percent of CD4+CD25hiCD39+ Treg at baseline between patients who had not relapsed at 9 months versus those who relapsed or died (p = 0.04). Those in the relapse group had significantly higher Treg levels. b By month 3, Treg in both groups tended to be higher compared to baseline, but to a greater degree in the relapse-free group. There was no significant difference in Treg levels at month 3 between the two groups (p = 0.266). Y axis shows the % of CD4⁺CD25^hi+ cells that express CD39