Impact of HLA class I allele-level mismatch on viral infection within 100 days after cord blood transplantation.

In addition, regarding variables other than HLA mismatch, positive CMV serostatus (HR 5.08 [0.75–34.3], p = 0.09), underlying disease (lymphoid malignancies including ALL or ML) (HR 3.70 [1.83–7.48], p < 0.01), prior auto-SCT (HR 2.65 [1.01–7.00], p = 0.04), year of CBT (2015 or later) (HR 2.86 [1.39–5.87], p < 0.01), and lower total nucleated cell counts (NCC) (HR 1.88 [0.93–3.80], p = 0.07) were related to a higher incidence of viral infection with significance or borderline significance (Table 2 ).

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