Perioperative medicine & outcomes
Impact of body mass index on surgical case durations in an academic medical center
Authors' conclusion
In an academic hospital, patients with BMI ≥ 30 required more time in the operating room than patients with BMI < 30, when controlling for confounders.
Study context
- Population
- Adult surgical patients at University of Virginia Health, August 2017–February 2019
- Participants
- 31,548 cases
- Exposure
- Body mass index (BMI) 30 ≤ BMI < 40 and BMI ≥ 40 vs BMI < 30
- Outcome
- OR duration (association with patient BMI)
Methodological detailssingle-centre, linear mixed effects models
- Single-centre
- Linear mixed effects models
Main finding
As reported in the abstract
Time in the OR
BMI < 30
139.5
mean · SD 111.2
30 ≤ BMI < 40
150.2
mean · SD 115.4
BMI ≥ 40
153.1
mean · SD 111.1
Each group vs BMI < 30Increase in OR time (95% CI)
30 ≤ BMI < 40
2%(1–3%)
BMI ≥ 40
3%(1–5%)
Observational data: associations, not effects.
Original publication
Impact of body mass index on surgical case durations in an academic medical center. J Clin Anesth. Published 11 July 2023. doi:10.
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