Short- and long-term mortality in patients with community-acquired severe sepsis and septic shock

AbstractBackground: Severe sepsis and septic shock have a high 30-day mortality (10–50%), but the long-term mortality is not well described. The purpose of this study was to describe long-term mortality among patients with community-acquired severe sepsis or septic shock compared to a population-based reference cohort. Methods: Two hundred and twelve patients who, within the first 24 h after arrival at the hospital, presented with infection and had failure of at least 1 organ system were included. A population-based reference group of 79,857 patients was identified, and data on comorbidities were extracted from the National Danish Patient Registry. We analyzed the hazard ratio for mortality at predefined intervals. Results: Absolute mortality within the first 30 days was 69/211 (33%, 95% confidence interval (CI) 25–41%), with a cumulative mortality of 121/211 (57%, 95% CI 48–69%) for the entire follow-up. Among septic patients who survived the first 30 days, the mortality hazard ratio was 2.7 (95% CI 1.7–...