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The Prevalence of Obesity and Postoperative Complications in a Veterans Affairs Medical Center General Surgery Population

Patients who are obese are believed to be at greater risk of developing intraoperative and postoperative complications than their nonobese counterparts. Many studies have shown that there is a higher prevalence of obesity among the Veterans Affairs patient population. We performed a retrospective review of 941 patients presenting to a single Veterans Affairs Medical Center. We aimed to determine the incidence of obesity among the Veterans Affairs Medical Center general surgery patient population as well to compare the frequency of postoperative complications between patients who are obese and nonobese patients undergoing elective general surgery. Body mass index was calculated for all patients; of the 941 patients seen in the clinic, 547 underwent elective surgery. Thirty-three per cent of all clinic patients had a body mass index greater than 30 kg/m2. Twenty-eight per cent of patients who underwent surgery had a body mass index greater than 30 kg/m2. Postoperative complications developed among 5.5 per cent of all surgical patients; 23.3 per cent were obese and 76.7 per cent were nonobese. There was no statistically significant difference between these two groups (P = 0.54). This study illustrates the increased prevalence of obesity among the Veterans Affairs Medical Center general surgery patient population. In addition, our study suggests that obesity is not an independent risk factor for postoperative complications in patients undergoing elective general surgery.