Journal of clinical anesthesia
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To investigate the association between patient body mass index (BMI) and operating room duration. ⋯ In an academic hospital, patients with BMI ≥ 30 required more time in the operating room than patients with BMI < 30, when controlling for confounders. This information can be incorporated into modern-day OR scheduling software, potentially resulting in more accurate case duration estimates that reduce waiting and improve OR efficiency.