| Summary: | There is no gold standard for the diagnosis of coagulation dysfunction in sepsis, and the use of the current scoring systems is still controversial. The purpose of this study was to assess the performance of sepsis-induced coagulopathy (SIC), the Japanese Association for Acute Medicine Disseminated Intravascular Coagulation (JAAM DIC), and the International Society on Thrombosis and Haemostasis overt DIC (ISTH overt-DIC). The relationship between each scoring system and 28-day all-cause mortality was examined. Among 452 patients (mean age, 65 [48,76] years), 306 [66.7%] were men, the median SOFA score was 6 [4,9], and the median APACHE II score was 15 [11,22]. A total of 132 patients (29.2%) died within 28 days. Both the diagnosis of SIC (AUROC, 0.779 [95% CI, 0.728–0.830], P < 0.001) and ISTH overt-DIC (AUROC, 0.782 [95% CI, 0.732–0.833], P < 0.001) performed equally well in the discrimination of 28-day all-cause mortality (between-group difference: SIC versus ISTH overt-DIC, −0.003 [95% CI, −0.025–0.018], P = 0.766). However, the SIC demonstrated greater calibration for 28-day all-cause mortality than ISTH overt-DIC (the coincidence of the calibration curve of the former is higher than that of the latter). The diagnosis of JAAM DIC was not independently associated with 28-day all-cause mortality in sepsis (RR, 1.115, [95% CI 0.660–1.182], P = 0.684). The SIC scoring system demonstrated superior prognostic prediction ability in comparison with the others and is the most appropriate standard for diagnosing coagulopathy in sepsis.
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