Prognostic value of pretreatment plasma D-dimer levels in patients with diffuse large B cell lymphoma (DLBCL).

•A higher D-dimer level is an independent predictor for worse OS in patients with DLBCL.•The survival rates of patients with higher D-dimer in non-high risk groups of IPI are similar to those of high-risk group.•For patients treated with surgery, those with higher D-dimer have worse survival than those with lower D-dimer.