Perioperative medicine & outcomes

Patient Characteristics Associated With Outcomes After General Anaesthesia in Denmark: A Nationwide Observational Study

Acta Anaesthesiol ScandPublished Nationwide registry-based observational cohort study

Authors' conclusion

In this nationwide observational cohort study, higher ASA classification, higher age and male sex were independently associated with increased odds of 30-day mortality and several secondary outcomes after general anaesthesia.

Study context

Population
Patients aged ≥18 years undergoing GA in Denmark, 2020–2021453,133 GA cases
Participants
328,951 patients
Exposure
ASA I, III, IV, V vs ASA II
Outcome
30-day mortality
Follow-up
30 days

Main finding

As reported in the abstract

30-day mortality (adjusted)
Each group vs ASA IIAdjusted odds ratio (CI)
ASA I
0.19(0.13–0.29)
ASA III
7.00(5.28–9.29)
ASA IV
40.7(29.5–56.0)
ASA V
223(161–307)

Observational data: associations, not effects.

Secondary outcomes

Higher ASA class, higher age and male sex independently associated with increased odds of several secondary outcomes

Original publication

Patient Characteristics Associated With Outcomes After General Anaesthesia in Denmark: A Nationwide Observational Study. Acta Anaesthesiol Scand. Published 26 September 2025. doi:10.1111/aas.70130

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.