Forest plot of odds of SN ascertainment by source. ORs and 95% CIs derived from multivariable polychotomous generalized estimating equations models accounting for within-person correlation due to patients having >1 SN type. Other and unknown race includes Native Hawaiian and other Pacific Islander and American Indian/Alaska Native patients. Center volume is defined as the number of alloHCTs performed at each center using information in the CIBMTR database and grouped into tertiles (low, <140; medium, 140-459; high, ≥460).¹⁴ For SNs reported by both sources, date of SN and interval between HCT and SN are based on the earlier reported SN (if dates differed between CCR and CIBMTR).