Sepsis & infection

Impact of prehospital antibiotic therapy differs depending on septic shock origin

J Intensive CarePublished Observational cohort study

Main finding · 30-day mortalityResult — go to the resultRelative risk 0.64 95% CI 0.41–0.97

Authors' conclusion

The prehospital antibiotics administration is associated with a reduced risk of 30-day mortality among patients suffering from septic shock cared for by a prehospital MICU. The prehospital antibiotic treatment effect differs according to septic shock origin.

Study context

Population
Septic shock patients (Sepsis-2) admitted to ICU after prehospital care by a mobile ICU (mobile intensive care unit (MICU)), France, May 2016 to December 2021analysed
Participants
530 patients
Exposure
Prehospital antibiotics vs No prehospital antibiotics
  • Prehospital antibioticsn = 132
Outcome
30-day mortality
Follow-up
30 days
Methodological detailsnationwide, target trial emulation, inverse probability of treatment weighting
  • Nationwide
  • Target trial emulation
  • Inverse probability of treatment weighting

Main finding

As reported in the abstract

Relative risk

0.64

95% CI 0.41–0.97

Prehospital antibiotics vs No prehospital antibiotics
RR 0.64 (95% CI 0.41–0.97)

Observational data: associations, not effects.

Further findings

OutcomeRRa (CI)
30-day mortality by presumed septic shock origin (subgroup) · 30 daysPrehospital antibiotics vs No prehospital antibiotics · pulmonary origin · weighted logistic regression model0.80 (0.86–0.93)
30-day mortality by presumed septic shock origin (subgroup) · 30 daysPrehospital antibiotics vs No prehospital antibiotics · urinary origin · weighted logistic regression model0.89 (0.80–0.98)
30-day mortality by presumed septic shock origin (subgroup) · 30 daysPrehospital antibiotics vs No prehospital antibiotics · unknown origin · weighted logistic regression model0.94 (0.86–0.99)

Original publication

Impact of prehospital antibiotic therapy differs depending on septic shock origin. J Intensive Care. Published 2 March 2026. doi:10.1186/s40560-026-00853-y

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