Results of survival analyses. Kaplan-Meier curves of overall survival according to CD47 status and tumor locations of patients with DLBCL NOS in the training (A-E) and validation cohorts (F-J). CD47 expression was not a significant prognostic factor in intestinal diffuse large B-cell lymphoma; however, the prognosis of CD47-high cases was worse than that of CD47-low cases at extranodal/nonintestinal organs in the training cohort. In the validation cohort, CD47-high DLBCL showed a worse prognosis than CD47-low in the extranodal/nonintestinal sites, but it was not statistically significant.