What question did this study set out to answer?

The study aims to determine how different types of antibiotics and their timing affect sepsis mortality in ICU patients.

February 28, 2026Scientific ReportsOpen Access

Association of antibiotic type and timing with sepsis mortality using target trial emulation

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Evaluates antibiotic type and timing on sepsis mortality in ICU patients, suggesting beta-lactam preference.

The study aims to determine how different types of antibiotics and their timing affect sepsis mortality in ICU patients.
Utilized the MIMIC-IV database for patient data
Emulated a sequential target trial comparing timing of antibiotic initiation
Implemented a clone–censor–weight process to manage confounding factors
Applied weighted Cox regression to analyze in-hospital mortality
97% of eligible patients received antibiotics within 48 hours
Beta-lactam use correlated with reduced mortality (HR 0.88, 95% CI 0.78–0.95)
No impact of timing on outcomes for beta-lactams or glycopeptides
Evidence supports beta-lactam therapy as first-line treatment in early sepsis management

Li et al. (2026) studied this question.

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