Welcome to the Los Angeles County (LAC) Department of Public Health (DPH) National Healthcare Safety Network (NHSN) Healthcare-associated Infection (HAI) Dashboard for hospitals. This dashboard provides quarterly, semi-annual, and annual summaries on the number and rate of HAIs identified in LAC hospitals, including in Long Beach and Pasadena. This report can be used to measure progress toward HAI prevention goals and assess the impact of HAI prevention programs. Hospitals are required to report HAI through the NHSN, facilitated by the Centers for Disease Control and Prevention (CDC), to comply with Centers for Medicare & Medicaid Services (CMS), state, and local requirements. Page 1 includes summary data for five HAI on hospitals in LAC. Page 2 includes summary data for four HAI that use different metrics.


  1. SIR = Standardized Infection Ratio is a summary measure used to track HAI at the national, state, and local level over time. SIR compares the actual number of HAI reported to the number predicted, based on model parameters that adjust for several risk factors that have been found to be significantly associated with differences in infection incidence (e.g. hospital type, unit type, hospital bed size, average length of stay)
  2. Rate per 10K Days = The rate is a crude measure of the total number of infections divided by the number of patient or device days for the specified time period. The rate does not reflect differences in risk that are adjusted for in the SIR. The “days” are specific to each HAI and are as follows: 
    1. Central line days for CLABSI
    2. Catheter days for CAUTI
    3. Procedures for SSI
    4. Patient days for MRSA
    5. Patient days for CDI
    6. Patient days for HO rates of CRE and VRE
  3. HO = Healthcare Facility-onset is when a CRE or VRE specimen was collected more than 3 days after admission to a healthcare facility.
  4. CO = Community-onset is when a CRE or VRE specimen was collected in an outpatient location or an inpatient location less than or equal to 3 days after admission to a healthcare facility.
  5. CLABSI = Central Line-Associated Bloodstream Infection 
  6. CAUTI = Catheter-Associated Urinary Tract Infection
  7. SSI = Surgical Site Infection
  8. MRSA = Methicillin-Resistant Staphylococcus aureus bacteremia
  9. CDI = Clostridioides difficile Infection
  10. VRE = Vancomycin-Resistant Enterococcus
  11. CRE = Carbapenem-Resistant Enterobacterales
    1. Data begins in 2017.
  12. GACH = General Acute Care Hospital
  13. LTACH = Long-Term Acute Care Hospital
  14. ICU = Intensive Care Unit
  15. NEURO ICU = Neurologic Intensive Care Unit
  16. ONC ICU = Oncology Intensive Care Unit
  17. OTHER = Other units
  18. OVERALL = All units within the GACH or LTACH
  19. SCA = Specialty Care Area
  20. STEP = Step Down Unit
  21. WARD = Ward
  22. ONC WARD = Oncology Ward
  23. Q1 = January 1st to March 31st
  24. Q2 = April 1st to June 30th 
  25. Q3 = July 1st to September 30th 
  26. Q4 = October 1st to December 31st
  27. H1 = January 1st to June 30th
  28. H2 = July 1st to December 31st
  29. Yr = January 1st to December 31st 
  30. CMS granted relief for hospitals participating in quality reporting programs in response to COVID-19. Hospitals were not required to report HAI through NHSN during 2020H1. The data during 2020H1 (including 2020Q1 and 2020Q2) is not reliable to compare with other time periods and have been suppressed from this dashboard. 2020 (Yr) has also been suppressed.
  31. Filters for which less than five hospitals reported during the given time period (e.g. CLABSI and CAUTI in GACH SCA during all 2020 time periods) have been suppressed. 

Data Sources:

The CDC provides national data on infection rates through the National Healthcare Safety Network (NHSN). The HAI data were reported in response to state or federal reporting requirements (via CMS, state, and local requirements), or were reported voluntarily, from hospitals in Los Angeles County, including Long Beach and Pasadena, from 2015 to 2020. Previous annual LAC HAI Regional Summary Reports can be found in HAI Publications.