Pediatric anesthesia & critical care
Association between preoperative tropospheric ozone exposure and adverse perioperative respiratory events in paediatric patients: a single-centre retrospective cohort study
Main findingResult — go to the resultRelative risk 1.43 95% CI 1.02–2.03Authors' conclusion
Ground-level O3 was associated with increased perioperative respiratory adverse events in paediatric patients undergoing elective anaesthesia.
Study context
- Population
- Paediatric patients presenting from home for elective anaesthesia for a surgical or imaging procedure, over a 4-yr period
- Exposure
- High vs low preoperative ground-level O3 exposure
- Outcome
- Adverse respiratory event under anaesthesia or in the immediate postoperative period
Methodological detailssingle-centre
- Single-centre
Main finding
As reported in the abstract
Relative risk
1.43
95% CI 1.02–2.03
P = 0.042
By group
High O3 exposure vs Low O3 exposure
RR 1.43 (95% CI 1.02–2.03); P = 0.042
Observational data: associations, not effects.
Further findings
Overall incidence of perioperative respiratory adverse events
- Overall incidence
- 5.7%
Patients with reactive airway disease or active respiratory infection (subgroup)
- Effect of high O3 exposure also present
Original publication
Association between preoperative tropospheric ozone exposure and adverse perioperative respiratory events in paediatric patients: a single-centre retrospective cohort study. Br J Anaesth. Published 22 January 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →