The impact of coagulopathy on prognosis in critically ill patients with sepsis: A nationwide cohort study

J Crit Care. 2026 Jun:93:155436. doi: 10.1016/j.jcrc.2026.155436. Epub 2026 Jan 22.

Abstract

Introduction: Coagulation impairment is frequently observed in patients with sepsis. However, the relationship between coagulopathy and outcomes in Korean sepsis patients remains poorly defined.

Methods: We analyzed a nationwide cohort of 13,827 sepsis patients from 15 hospitals in South Korea between September 2019 and December 2022. Patients were classified into three groups according to sepsis-induced coagulopathy (SIC) and disseminated intravascular coagulation (DIC) scores: SIC (-), SIC (+), and DIC (+). The primary outcome was 28-day mortality; the secondary outcome was the incidence of major bleeding events.

Results: Among 3217 patients, 1696 (52.7%) were in the SIC (-) group, 932 (29.0%) in the SIC (+) group, and 589 (18.3%) in the DIC (+) group. After adjustment for covariates, both the SIC (+) group (adjusted hazard ratio [aHR] 1.35, 95% confidence interval [CI] 1.16-1.58, p < 0.001) and the DIC (+) group (aHR 1.59, 95% CI 1.33-1.90, p < 0.001) showed significantly increased 28-day mortality. Major bleeding events, although infrequent across all groups, increased in the DIC (+) group (adjusted odds ratio [aOR] 2.02, 95% CI 1.03-3.88, p = 0.036); however, no significant increase was observed in the SIC (+) group (aOR 1.20, 95% CI 0.60-2.33, p = 0.600) compared with the SIC (-) group.

Conclusions: In this nationwide cohort, sepsis-induced coagulopathy was associated with higher 28-day mortality but not with a significantly increased risk of major bleeding.

Keywords: Disseminated intravascular coagulation; Platelet count; Prothrombin time; Sepsis.

MeSH terms

  • Aged
  • Blood Coagulation Disorders* / etiology
  • Blood Coagulation Disorders* / mortality
  • Cohort Studies
  • Critical Illness* / mortality
  • Disseminated Intravascular Coagulation* / mortality
  • Female
  • Hemorrhage / epidemiology
  • Humans
  • Male
  • Middle Aged
  • Prognosis
  • Republic of Korea / epidemiology
  • Sepsis* / complications
  • Sepsis* / mortality