Standardized infection ratio (SIR) and Adjusted Ranking Metric (ARM)of hospital-onset unique blood source MRSA Laboratory-identified events (LabID events) among all inpatients in the facility
Total number of observed hospital-onset unique blood source MRSA LabID events among all inpatients in the facility per NHSN protocols.
Denominator
1.15 Denominator
Total number of predicted hospital-onset unique blood source MRSA LabID events, calculated from a negative binomial regression model and risk adjusted for facility’s number of inpatient days, inpatient community-onset MRSA prevalence rate, average length of patient stay in the hospital, medical school affiliation, facility type, number of critical care beds in the hospital, and outpatient community-onset MRSA prevalence rate from emergency departments and observation units.
Exclusions
Exclusions
Data from patients who are not assigned to an inpatient bed in an applicable location are excluded from the denominator counts. Denominator counts exclude data from inpatient rehabilitation units and inpatient psychiatric units with different CMS Certification Numbers (CCN) from the acute care facility.
Measure Record
Most Recent Endorsement Activity
Endorsed Patient Safety Fall Cycle 2018
Initial Endorsement
Last Updated
Point of Contact
Steward Organization
Centers for Disease Control and Prevention
Steward POC email
dpollock@cdc.gov
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