Perioperative medicine & outcomes
Outcomes of after‐hours surgeries performed under general anaesthesia: a South Korean nationwide cohort study
Authors' conclusion
After-hours surgery was associated with a higher risk of death within 90 days, an increase in all-cause mortality after 1-year and a higher incidence of postoperative complications.
Study context
- Population
- Patients who underwent surgery under GA, National Health Insurance Service of South Korea1,416,844 considered
- Participants
- 281,717 patients
- Exposure
- After-hours vs in-hours surgery under GA
- After-hoursn = 57,497
- In-hoursn = 224,220reference
- Outcome
- 90-day and 1-year mortality, and incidence of postoperative complications
Methodological detailspropensity score-matched (1:5), nationwide
- Propensity score-matched (1:5)
- Nationwide
Main finding
As reported in the abstract
After-hours vs In-hoursEstimate (95% CI)P value
90-day all-cause mortality
OR 3.58(3.47–3.69)
P < 0.0011-year all-cause mortality
HR 2.51(2.46–2.57)
P < 0.001Postoperative complications
OR 2.14(2.10–2.19)
P < 0.001Observational data: associations, not effects.
Original publication
Outcomes of after‐hours surgeries performed under general anaesthesia: a South Korean nationwide cohort study. Anaesthesia. Published 10 February 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →