Surgical site infections in outpatient surgeries: Less invasive procedures contribute substantially to the overall burden

More than 50% of outpatient surgeries predicted to have an increased likelihood of an adverse event were excluded from surgical site infection (SSI) surveillance based on Veterans Affairs Surgical Quality Improvement Program (VASQIP) eligibility criteria, defined by clinician determination of invasiveness. Burden of SSI for eligible versus ineligible surgeries was similar; thus, surveillance activities in the outpatient setting need to be re-evaluated.