title: Unrelated donor umbilical cord blood transplantation versus unrelated donor bone marrow transplantation in adult and pediatric patients: A meta-analysis.
abstract: The effect of unrelated donor bone marrow transplantation (UBMT) and unrelated donor cord blood transplantation (UCBT) on the outcome of patients with hematological diseases remains controversial. We conducted a meta-analysis using data from controlled clinical trials comparing UCBT to UBMT in patients undergoing hematopoietic stem cell transplantation. Pooled comparisons of studies of UCBT and UBMT in children found that the incidence of chronic graft-versus-host disease (GVHD) was lower with UCBT (relative risk [RR]=0.41; 95% confidence interval [CI] (0.25, 0.68)), and the incidence of grades II-IV aGVHD was also significantly different (RR=0.69; 95% CI (0.55, 0.86)). The incidence of relapse was also lower with UCBT (RR=0.72; 95% CI (0.59, 0.87)). There was no difference in OS in children when studies were pooled (Hazard ratio [HR]=1.25; 95% CI (0.87, 1.78)). For adults, OS (HR=1.26; 95% CI (1.13, 1.40)) was statistically different. Thus, UCBT led to inferior outcomes than UBMT in adults.
authors.affiliation: Department of Hematology, the Affiliated DrumTower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Ping
authors.initials: P
authors.lastname: Zhan
authors.forename: Jian
authors.initials: J
authors.lastname: Ouyang
authors.forename: Bing
authors.initials: B
authors.lastname: Chen
authors.forename: Rongfu
authors.initials: R
authors.lastname: Zhou
authors.forename: Yonggong
authors.initials: Y
authors.lastname: Yang
mesh_terms: D000328:Adult; D016026:Bone Marrow Transplantation; D002648:Child; D036101:Cord Blood Stem Cell Transplantation; D005312:Fetal Blood; D006086:Graft vs Host Disease / Q000517:prevention & control*; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D014019:Tissue Donors