Cumulative use of glucocorticoids among patients given either low-dose glucocorticoids (prednisone-equivalent dose of 1 mg/kg per day; dashed line) or standard-dose glucocorticoids (prednisone-equivalent dose 2 mg/kg per day; solid line) for initial treatment of acute GVHD. In this analysis, follow-up was censored when patients returned to the care of the referring physicians.