Deep incisional primary (DIP) and organ/space SSIs during the 30-day postoperative period among patients = 18 years of age, who undergo inpatient colon surgeries or abdominal hysterectomies. SSIs will be identified before discharge from the hospital, upon readmission to the same hospital, or during outpatient care or admission to another hospital (post-discharge surveillance). Case accrual will be guided by sampling algorithms as described below.

Using multivariable logistic regression models for colon surgeries and abdominal hysterectomies, the expected number of SSIs is obtained. These expected numbers are summed by facility and surgical procedure and used as the denominator of this measure

Denominator Exclusions: Persons under the age of 18, those having a procedure performed on an outpatient basis, those with ASA Class VI (6) are excluded. In the NHSN, patients without primary closure of the surgical incision are not considered eligible cases and are excluded- the NSQIP will match this practice for this measure, although this is not standard practice within the NSQIP.

Colon surgery, Abdominal hysterectomies

National Quality Forum 2022 Key Rural Measures: An Update List of Measures to Advance Rural Health Priorities, Draft 1, page 1-26

Download from: www.qualityforum.org/Publications/2022/08/2022KeyRural_Measures__An_Updated_List_of_Measures_to_Advance_Rural_Health_Priorities.aspx

Numerator and Denominator: www.hospitalsafetygrade.org/media/file/SSI_Colon.pdf