We evaluated the diagnostic criteria for disseminated intravascular coagulation (DIC), which was published by the Japanese Society of Thrombosis and Hemostasis (JSTH), in 232 patients with suspected DIC without hematopoietic injury or infection. The diagnoses of the patients were as follows: DIC (n = 116), pre-DIC (n = 54), and non-DIC (n = 63). The efficacy of the diagnostic criteria for DIC was evaluated using a receiver operating characteristic analysis. The area under the curve and odds ratio for the global coagulation test (GCT) scores in the diagnosis of "DIC" were high, whereas those for the diagnosis of "DIC and pre-DIC" were low, suggesting that the addition of a reduced platelet count (RPC), antithrombin (AT), and soluble fibrin (SF)/thrombin AT (TAT) complex was required to diagnose DIC and pre-DIC. When the GCT score with the RPC, AT, and TAT/SF values was used, the cutoff DIC score for the diagnosis of DIC or DIC and pre-DIC was 6 points. For predicting the outcome, a scoring system that used the GCT result was useful, but the addition of RPC, AT, or SF/TAT was not. The modified diagnostic criteria of JSTH, which included the GCT score and the RPC, AT, and TAT/SF values, were useful for diagnosing both DIC and pre-DIC.
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