To retrospectively validate the prognostic value of the latest Chinese disseminated intravascular coagulation (DIC) scoring system (CDSS) in hematological malignancies, 260 patients with confirmed hematological malignancies and suspected DIC in West China Hospital between 2011 and 2015 were included in this study. We evaluated via univariate and multivariate analyses the diagnostic biomarkers, and the cutoff levels used in the CDSS, except those for fibrinogen, were found to be valid. In subgroup analyses, the value of fibrinogen was found to be mainly unfit for the acute promyelocytic leukemia group. Forty-six patients (17.7%) had elevated fibrinogen levels (>4 g/L) and tended to have a poor prognosis, and thus we redetermined the cutoff value of fibrinogen (<1 g/L or >4 g/L was defined as abnormal). As a result, all of the markers used in the CDSS had prognostic value (including for the promyelocytic leukemia group); meanwhile, this modification also resulted in a larger area under the receiver operating characteristic curve compared to the CDSS and the International Society on Thrombosis and Haemostasis score. We believe that, with regard to prognosis prediction, this cutoff value modification for fibrinogen is preferable for DIC patients with a tendency toward severe hypofibrinogenemia. However, a multicenter, prospective study is needed to validate this possibility.

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