• Hassan Nasser, Tommy Ivanics, Shravan Leonard-Murali, and Amalia Stefanou.
• Department of Surgery, Henry Ford Hospital, Detroit, Michigan. Electronic address: hnasser2@hfhs.org.
• J. Surg. Res. 2020 May 1; 249: 25-33.

BackgroundSurgical site infection (SSI) is a common complication after colon surgery. This study aimed to evaluate risk factors for SSI and its types in laparoscopic colectomy patients using the American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) database.Materials And MethodsThe NSQIP database was queried for patients undergoing laparoscopic colectomy from 2011 through 2017. Univariate analysis and multivariable logistic regression were used to evaluate risk factors associated with any SSI, superficial SSI, deep-incisional SSI, and organ-space SSI.ResultsOf 72,519 patients, 4906 cases of SSI were identified: 2276 superficial SSI, 357 deep-incisional SSI, and 2483 organ-space SSI. Risk factors associated with superficial SSI were admission before procedure (adjusted odds ratio [AOR] = 1.31; 95% confidence interval [CI] 1.17-1.47; P < 0.01), smoking (AOR = 1.29; 95% CI 1.16-1.44; P < 0.01), and higher body mass index (AOR = 1.24 for every 5 kg/m2 increase; 95% CI 1.20-1.27; P < 0.01). Deep-incisional SSI was associated with steroid use (AOR = 1.81; 95% CI 1.31-2.49; P < 0.01), admission before procedure (AOR = 1.66; 95% CI 1.30-2.13; P < 0.01), and smoking (AOR = 1.50; 95% CI 1.17-1.94; P < 0.01). Risk factors associated with organ-space SSI were wound class (AOR = 2.45 for class 4 versus ≤ 2; 95% CI 2.16-2.78; P < 0.01), chemotherapy within 90 d (AOR = 1.57; 95% CI 1.33-1.84; P < 0.01), and steroid use (AOR = 1.46; 95% CI 1.29-1.65; P < 0.01). Receipt of an oral antibiotic prep preoperatively was the strongest factor associated with SSI.ConclusionsSSI types in patients undergoing laparoscopic colectomy have different risk factors. Modifiable risk factors may provide an opportunity to reduce SSI risk and its associated morbidity.Copyright © 2019 Elsevier Inc. All rights reserved.

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