Anaesthetic drugs & techniques
Characteristics and Outcomes After General Anaesthesia in Elderly Patients: A Nationwide Cohort Study
Authors' conclusion
In this nationwide registry-based cohort study, we described the elderly patient population undergoing general anaesthesia in Denmark. We found that 30-day mortality increased for each year after 65 years of age even after adjusting for covariates.
Study context
- Population
- Adult patients (≥ 18 years) undergoing general anaesthesia in Denmark in 2020 and 2021, with a primary focus on patients 80 years and aboven = 328,951 unique patients, 453,133 cases of general anaesthesia, patients 80 years of age and above 25,955
- Outcome
- 30-day mortality
- Follow-up
- 30 days
Main finding
As reported in the abstract
Mortality for all patients at 30 days
1.5%
n = 4814
Observational data: associations, not effects.
Secondary outcomes
Characteristics of elderly patients (80 years and above)
- Patients 80 years of age and above
- 25,955 (8%)
- Higher ASA classification, higher degree of comorbidity by Elixhauser Comorbidity Index, lower proportion of elective procedures and higher proportion of expedited and urgent procedures
Original publication
Characteristics and Outcomes After General Anaesthesia in Elderly Patients: A Nationwide Cohort Study. Acta Anaesthesiol Scand. Published 27 October 2026. doi:10.
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