Healthcare-Associated Infections: Data

The Wisconsin Healthcare-Associated Infections (HAI) Prevention Program conducts statewide HAI surveillance and reports aggregate data to monitor trends. HAI data is reported by hospitals through the National Healthcare Safety Network, a national HAI reporting system developed and maintained by the CDC (Centers for Disease Control and Prevention).

This webpage contains Wisconsin HAI reports and other data.


Wisconsin HAI Prevention Program annual reports

View Wisconsin statewide data in the Healthcare-Associated infections (HAIs) Prevention Program Annual Reports, P-00340.

For information on national HAI data, visit the CDC's NHSN Data and Reports page.


Wisconsin standardized infection ratios (SIRs)

The SIR is the ratio of the number of observed HAIs to the number of predicted infections. The SIR is risk-adjusted to account for the underlying risk of infection in the population being measured. Below are SIRs for selected HAIs. The SIR enables “apples to apples” comparisons of HAI data across facilities and hospital unit types, as well as comparisons with state and national data.

Abbreviations

CAUTI: Catheter-associated urinary tract infection

CDI: Clostridioides difficile infection

CLABSI: Central line-associated bloodstream infection

COLO: Colon surgery

HPRO: Hip prosthesis surgery

HYST: Abdominal hysterectomy

KPRO: Knee prosthesis surgery

MRSA: Methicillin-resistant Staphylococcus aureus

SSI: Surgical site infection

VAE: Ventilator-associated event

Acute care hospitals

Acute Care Hospital 2023 Standardized Infection Ratios

Critical access hospitals

Critical Access Hospital 2023 Standardized Infection Rations

SSI SIRs for acute care and critical access hospitals

Acute Care and Critical Access Hospital 2023 Surgical Site Infection Standardized Infection Ratios

Surgical site infections data

Surgical site infections (SSIs) are infections that occur after surgery, in the area of the body where the procedure took place. SSIs are currently the most frequently reported serious HAIs among Wisconsin hospitals. Many hospitals and quality improvement organizations are working together to reduce these infections.

The Wisconsin HAI Prevention Program provides frequently updated SSI data to monitor statewide progress toward SSI reduction.

Quarterly report—Q1 2024

The number of hospitals reporting=121. Data was accessed from the National Healthcare Safety Network (NHSN) on September 3, 2024.

Adult

  • Infections following all reported procedures: 260
  • Total procedures performed: 16,912
  • Wisconsin standardized infection ratio (SIR)
    (Number of observed infections divided by the number of predicted infections based on 2015 national data.) : 0.96

Pediatric

  • Infections following all reported procedures: 7
  • Total procedures performed: 366
  • Wisconsin standardized infection ratio (SIR)
    (Number of observed infections divided by the number of predicted infections based on 2015 national data.): 0.94

Questions about HAIs? Contact us!

HAI website | Phone: 608-267-7711 | Fax: 608-261-4976

Glossary

 
Last revised September 13, 2024