Data and Statistics
HAI Prevalence Survey
The CDC healthcare-associated infection (HAI) prevalence survey
provides an updated national estimate of the overall problem of HAIs in U.S. hospitals. Based on a large sample of U.S. acute care hospitals, the survey found that on any given day, about 1 in 25 hospital patients has at least one healthcare-associated infection. There were an estimated 722,000 HAIs in U.S acute care hospitals in 2011. About 75,000 hospital patients with HAIs died during their hospitalizations. More than half of all HAIs occurred outside of the intensive care unit.
provides an updated national estimate of the overall problem of HAIs in U.S. hospitals. Based on a large sample of U.S. acute care hospitals, the survey found that on any given day, about 1 in 25 hospital patients has at least one healthcare-associated infection. There were an estimated 722,000 HAIs in U.S acute care hospitals in 2011. About 75,000 hospital patients with HAIs died during their hospitalizations. More than half of all HAIs occurred outside of the intensive care unit.Estimates of Healthcare-Associated Infections Occurring in Acute Care Hospitals in the United States, 2011
| Major Site of Infection | Estimated No. |
|---|---|
| Pneumonia | 157,500 |
| Gastrointestinal Illness | 123,100 |
| Urinary Tract Infections | 93,300 |
| Primary Bloodstream Infections | 71,900 |
| Surgical site infections from any inpatient surgery | 157,500 |
| Other types of infections | 118,500 |
| Estimated total number of infections in hospitals | 721,800 |
To read the full report, please visit: CDC HAI Prevalence Survey
Magill SS, Edwards JR, Bamberg W, et al. Multistate Point-Prevalence Survey of Health Care–Associated Infections. N Engl J Med 2014;370:1198-208.
Magill SS, Edwards JR, Bamberg W, et al. Multistate Point-Prevalence Survey of Health Care–Associated Infections.
N Engl J Med 2014;370:1198-208.HAI Progress Report
The CDC National and State Healthcare-Associated Infections Progress Report is a report that gives a closer look at the healthcare-associated infections (HAIs) most commonly reported to CDC using the National Healthcare Safety Network (NHSN). This is an annual report that describes national and state progress in preventing central line-associated bloodstream infections, catheter-associated urinary tract infections, surgical site infections after colon surgery and surgical site infections after abdominal hysterectomy. The report is based on 2012 data.
Estimates of Selected* Healthcare-Associated Infections Occurring in Acute Care Hospitals, 2011± or 2012†
| Type of Healthcare-Associated Infection | Estimated No. |
|---|---|
| Catheter-associated urinary tract infections (wards and critical care units) | 54,500† |
| Central line-associated bloodstream infections (wards and critical care units) | 30,100† |
| Surgical Site Infections associated with 10 surgical procedures | 53,700† |
| Hospital-onset Clostridium difficile infections (all hospital locations) | 107,700± |
* Infections closely tied to performance measures reported as part of the CMS Hospital Quality Reporting Program
To read the full report, please visit: National and State Healthcare-Associated Infections Progress Report 2012
Previous Estimates of HAIs
- Estimating Healthcare-associated Infections and Deaths in U.S. Hospitals, 2002. Public Health Reports
[PDF - 241 KB]
- The Direct Medical Costs of Healthcare-associated Infections in U.S. Hospitals and the Benefits of Prevention
Additional reports can be found at on the NHSN Data & Statistics page.
Monitoring HAIs
CDC receives data on healthcare-associated infections (HAIs) through parallel efforts.
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