Infection Protection

Surgical fire risk; chlorhexidine dressings; infection reporting standards
by Cynthia T. Crosby
Vice President, Clinical Affairs, Medi-Flex,Inc.

Infection Protection is a monthly column dedicated to education about infection control issues. Every fourth issue includes a Q&A column to answer your questions about recent articles. We are pleased to publish your questions and hope you find the responses useful. If you have a question, please submit it to jakridge@hpnonline.com or call (941)927-9345 ext. 202.

Cynthia T. Crosby
Vice President, Clinical Affairs
Medi-Flex, Inc.

Mandatory reporting of healthcare-associated infections (HAIs) is a focus for many organizations, including the Association for Professionals in Infection Control and Epidemiology (APIC), the Centers for Medicare and Medicaid Services (CMS), the Healthcare Infection Control Practices Advisory Committee (HICPAC) of the Centers for Disease Control (CDC) and several consumer, patient safety and quality improvement groups. Interest in mandatory reporting is based on the impact of HAIs in contributing to patient mortality and excess healthcare costs. According to the CDC, HAIs account for 90,000 deaths annually and boost costs of care by $4.5 billion.1

Hospitals routinely track infection rates and administer prevention programs, but these infection surveillance activities are most likely to be performed for selected procedures or to track a subset of the most common infections. Total infection rates for institutions often are not calculated or, if they are available, may not be determined in a manner that allows for comparison by institution. A primary concern of many organizations is that hospital infection data generally are used only internally and therefore are not publicly available. Although many healthcare organizations have long histories of improving the practice of infection control in hospitals, the mandatory reporting issue is particularly influenced by consumer groups. The publication in 1999 of the Institute of Medicine’s report titled, To Err is Human: Building a Safer Health System, highlighted the cost in lives and healthcare expenditures due to medical errors.2 This, in turn, led to consumer advocacy designed to educate consumers and hold healthcare organizations accountable for care. The Consumers Union, the publisher of Consumer Reports, has been especially influential and has even created a campaign targeted toward reducing HAIs. Their website, StopHospitalInfections.org, provides information designed to educate consumers and provide news updates about infection control efforts at the state and national levels.3 Information provided on this site is distributed to mainstream television and print media, increasing consumer awareness of infection risks, hospital practices and reporting processes.

In an effort to address consumer concerns and improve accountability and standardization, the state legislatures of Florida, Illinois, Missouri and Pennsylvania have adopted mandatory reporting procedures at the state-wide level. Additional legislation is pending in most other states. (For information about the status of mandatory reporting legislation by state, visit the APIC website at www.apic.org.)4 Although the states’ efforts to require reporting are helpful first steps, requirements differ by state, and there are no national requirements or standards for collecting infection rate data.

HICPAC recommendations:
A summary
In late February, HICPAC released a document that was designed to provide guidance for policymakers developing mandatory HAI public reporting systems.1 This document, titled, Guidance on Public Reporting of Healthcare-Associated Infections, includes recommendations to help reporting organizations collect meaningful infection control data by using nationally recognized infection control measures. The guidance document is based on established principles for public health and HAI reporting systems and aims to enable decision-makers, including consumers, to have the data necessary to make informed decisions about healthcare practices and institutions. Recommendations in the HICPAC guidance document have been endorsed by APIC, the Council of State and Territorial Epidemiologists and the Society for Healthcare Epidemiology of America (SHEA).

Measurement criteria
To be meaningful, infection control data must be measurable. HICPAC recommends monitoring both process and outcome measures and assessing their correlation to ensure that processes adopted for infection control produce results.1 (Several standardized process and outcome measures are included in the guidance document.)

Criteria for process measures include
• application to common practices,
• validity within a wide range of healthcare settings
• and specificity, such as clear inclusion and exclusion criteria.

An example of a process measure that meets these criteria is influenza vaccination for healthcare personnel and patients.

Criteria for outcomes include the ability to measure
• frequency
• severity
• and preventability.
Outcome measure must have a high likelihood for accurate detection and reporting. In many cases, National Nosocomial Infection Surveillance (NNIS) criteria provide proven process and outcome measures that are applicable to many types of reporting systems. Table 1 presents recommended process and outcome measures from the guidance document.1

Case-finding
Including an entire hospital population in infection control reporting is not recommended because it is labor-intensive while producing results of limited value; in addition, standardized methods for risk adjustment have not been developed. It is more useful to identify specific risk categories in which HAIs are prevalent. Case-finding methodology can then be used to assess HAIs. The guidance document emphasizes that ICD-9 discharge codes alone are inadequate as a case-finding method to discover reliable infection rate data because patients are discharged sooner after procedures than in the past. Consequently, a surgical site infection, for example, might not be detected until after the patient has been discharged.

Data validation and assessment
Comparison of infection rates by institution significantly adds to the usefulness of the data collected. As such, data validation methods should be employed to ensure comparability of institutional data in the same reporting system. Adequate resources are necessary to produce valid quality results. These resources include trained personnel and materials necessary to collect and evaluate data. Ideally, HAI rates should be adjusted for differences in risk factors to allow more useful comparison. For example, if national standards such as NNIS criteria are used, data for device-associated infections would be risk-adjusted by calculating infection rates per 1,000 device days. Risk-adjustment and data validity are improved by the use of an adequate sample size. This requirement may pose problems for institutions with small patient populations in a selected surveillance area, such as surgery.

Useful reporting
Information released for public use must be presented in a format that can be interpreted by readers with various levels of scientific literacy. Limitations in methodology and results should be included for completeness. A mechanism for performance feedback is necessary for ongoing quality improvement.

Consequences of mandatory reporting
Before developing its guidance document, HICPAC reviewed the medical literature to determine the effects, if any, of reporting on infection rates. Currently, there is not enough evidence to draw conclusions about the effects of reporting on the incidence of HAIs. As more states require mandatory reporting, data will become available to make an assessment of its effects in terms of patient outcomes. The usefulness of infection rate data will depend on the methods used to collect it and its validity. The guidance document provides additional caveats that any policymaker should consider carefully before implementing a reporting system.

Other considerations
Obviously, dedicated healthcare professionals continuously strive to improve patient care by various means. Mandatory reporting may be one way to improve outcomes, although there are currently no data to demonstrate a correlation. Hospitals and other healthcare organizations are under increasing pressure to adopt many practices to improve patient outcomes, but perhaps there should be additional consideration about how practice improvements are initiated. States are rushing forward to enact legislations for mandatory reporting, ostensibly in response to consumer pressure. Failure to do so, or failure to act quickly, essentially opens hospitals to criticism that may be undeserved. The effort to create valid, effective processes to reduce infections requires extensive forethought, resources and time. While acknowledging consumer concerns, the HICPAC guidance document was created to encourage a methodical, standardized and useful process for reducing HAIs.

Conclusion
The HICPAC guidance document provides a useful framework for policymakers and others who are involved in developing infection reporting systems. Nevertheless, the details of which process and outcome measure to use, how to collect and analyze data and how to report results will continue to be developed either privately or at the state legislative level unless national standards are eventually developed. It is inevitable, therefore, that significant differences in reporting standards will continue. Currently, organizations such as APIC can play a vital role in encouraging additional conversation among infection control professionals about the reporting process. As new systems are put into place, it is critical to candidly evaluate failures as well as successes and to encourage sharing of both process methodology and overall results. Collecting useful, comparable infection rate data will take time. Ongoing oversight from organizations that can collect information from various reporting organizations can be extraordinarily useful.
HPN

References
1.Centers for Disease Control. Guidance on Public Reporting of Healthcare-Associated Infections. Recommendations of the Healthcare Infection Control Practices Advisory Committee. Available at: http://www.cdc.gov/ncidod/hip/Public
ReportingGuide.pdf. Accessed on March 20, 2005.

2.Kohn LT, Corrigan JM, Donaldson MS, eds. To Err is Human: Building a Safer Health System. Committee on Quality of Health Care in America. Institute of Medicine. National Academy Press; Washington, DC. 1999.

3.StopHospitalInfections.org. Consumers Union. Available at: http://www.consumersunion.org/campaigns
/stophospitalinfections/about.html. Accessed on March 31, 2005.

4.Mandatory reporting of infection rates: where does my state stand? Association for Professionals in Infection Control and Epidemiology. Available at: http://www.apic.org/Content/NavigationMenu
/Advocacy/MandatoryReporting/In_my_state1
/in_my_state.htm. Accessed on March 20, 2005.

May
2005