Charting the Course: 2022 NHSN HAI Rebaseline
The NHSN Team will be updating the national baseline used to calculate all healthcare-associated infections (HAI) standardized infection ratios (SIRs) and standardized utilization ratios (SURs) in the Patient Safety Component. This process of updating the national baseline, referred to as the “Rebaseline,” will involve the NHSN team analyzing national data and creating updated risk adjustment models, in a phased approach, to be used in the calculations of future SIR and SUR denominators. Refer to the tables below for information about the scope of this Rebaseline and the types of models that will be assessed and created.
The new baseline will represent data reported to NHSN for 2022. New SIR and SUR reports, based on the 2022 national baseline, will be created in the NHSN application in a phased approach; our goal is to have all new SIR and SUR reports available in the NHSN application by the end of 2024.
Where We’re Going
Multiple opportunities for education and communication around the 2022 Rebaseline and its implications will be available to the NHSN community later this year. This website will be updated in an on-going manner; please check this site and the FAQs below to get regular updates as this effort progresses.
The NHSN team remains committed to working with facilities to improve HAI prevention. Measuring progress under an updated national standard is important to understanding prevention efforts and standards in the current healthcare environment. The newly baselined data will continue to drive patient safety and the effort to reduce HAI rates.
|2022 HAI Rebaseline Scope: Surgical Site Infections
Potential Standardized Infection Ratio (SIR) Model Types
SSI SIR model inclusion criteria are detailed in the Analysis section of the NHSN SSI Protocol: Surgical Site Infection (cdc.gov) [PDF – 586 KB] The list of NHSN operative procedure categories is in Table 2 of the same document.
|CAUTI||Catheter-associated urinary tract infection|
|CDI||Clostridioides difficile infection|
|CLABSI||Central line-associated bloodstream infection|
|LabID Event||Laboratory-identified Event|
|MBI||Mucosal Barrier Injury|
|MRSA||Methicillin-resistant Staphylococcus aureus|
|NICU||Neonatal intensive care unit|
|SCAs/ONCs||Specialty Care Area/Oncology locations|
|SIR||Standardized Infection Ratio|
|SSI||Surgical Site infection|
|SUR||Standardized Utilization Ratio|