• Nguyen K Tram, Christian Mpody, Kwaku Owusu-Bediako, Marcelino E Murillo-Deluquez, Joseph D Tobias, and Olubukola O Nafiu.
• Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, Columbus, Ohio, USA.
• Paediatr Anaesth. 2023 Apr 1; 33 (4): 312318312-318.

BackgroundAlthough the prevalence of obesity in the general population and its perioperative implications among children undergoing inpatient surgeries are well known, little is known about obesity prevalence among children scheduled for ambulatory surgery.AimsHere, we report the trends of obesity and severe obesity among children who underwent ambulatory surgery across multiple centers in the United States and explore the association of obesity status with admission following elective ambulatory surgery.Materials And MethodsUsing data from the American College of Surgeons National Surgical Quality Improvement Program-Pediatric (2012-2019), we selected children 2-18 years old who underwent outpatient surgical procedures under general anesthesia and had documented height, weight, and body mass index (BMI) data. We estimated the prevalence of overweight, obesity (class 1), and severe obesity (class 2 and class 3) patients and explored their association with same-day hospital admission, defined as hospital length of stay ≥1 day.ResultsData from 152 918 children (mean age: 9.7 ± 4.7 years) were analyzed. Of these, 16.4% (n = 25 007) were overweight, 13.8% (n = 21 085) were class 1 obese, 5.2% (n = 7879) were class 2 obese, and 3.0% (n = 4623) were class 3 obese. From 2012 to 2019, class 2 or 3 obesity prevalence increased by 26.7% and 32.5%, respectively. Overweight and obese children had relatively higher odds of same-day hospital admission compared to healthy weight children (overweight odds ratio [95% confidence interval]: 1.05 [1.02, 1.08]; class 1 obesity: 1.04 [1.00, 1.07]; class 2 obesity: 1.09 [1.02, 1.16]; class 3 obesity: 1.20 [1.11, 1.30]).Discusion And ConclusionThe burden of obesity continues to increase in children scheduled for ambulatory surgery. Children with class 2 and class 3 obesity have higher rates of same-day hospital admission following elective ambulatory surgery compared to healthy weight children, a factor that should be considered in scheduling these patients.© 2022 John Wiley & Sons Ltd.

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