|National Healthcare Disparities Report, 2004
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Healthcare Cost and Utilization Project (HCUP)
U.S. Department of Health and Human Services, Agency for Healthcare Research and Quality (AHRQ).
Mode of Administration
HCUP databases bring together the data collection efforts of State data organizations, hospital associations, private data organizations, and the Federal government to create a national information resource of discharge-level health care data.
Survey Sample Design
HCUP includes a collection of longitudinal hospital care data, with all-payer, discharge-level information beginning in 1988. These databases enable research on a broad range of health policy issues, including cost and quality of health services, medical practice patterns, access to health care programs, and outcome of treatment at the national, State, and local market levels.
Primary Survey Content
The Nationwide Inpatient Sample (NIS) includes inpatient data from a national sample of over 1,000 hospitals.
The State Inpatient Databases (SID) cover inpatient care in community hospitals in participating States that represent about 90 percent of all U.S. hospital discharges.
The NHQR measures are based on the following AHRQ Quality Indicators:
- Inpatient Quality Indicators (IQI), which reflect quality of care in hospitals, include 13 mortality indicators for conditions or procedures for which mortality can vary from hospital to hospital; 9 utilization indicators for procedures for which utilization varies across hospitals or geographic areas; and 7 volume indicators for procedures for which outcomes may be related to the volume of those procedures performed.
- Prevention Quality Indicators (PQI) identify hospital admissions for 16 ambulatory care sensitive conditions, which evidence suggests could have been avoided, in part, through high-quality outpatient care.
- Patient Safety Indicators (PSI) reflect potential inpatient complications and other patient safety concerns following surgeries, other procedures, and childbirth.
Any person, U.S. citizen or foreign, using non-Federal, community hospitals in the United States.
Age, gender, race, insurance coverage, median household income of the patient's ZIP Code, urbanized location, and region of the United States.
National, regional, and State levels.
Inpatient Quality Indicators [IQI]
AHRQ Quality Indicators'Guide to Inpatient Quality Indicators: Quality of Care in Hospitals'Volume, Mortality, and Utilization. Rockville, MD: Agency for Healthcare Research and Quality, 2002. AHRQ Pub. No. 02-RO204.
Prevention Quality Indicators [PQI]
AHRQ Quality Indicators'Guide to Prevention Quality Indicators: Hospital Admission for Ambulatory Care Sensitive Conditions. Rockville, MD: Agency for Healthcare Research and Quality, 2001. AHRQ Pub. No. 02-R0203.
Patient Safety Indicators [PSI]
AHRQ Quality Indicators – Patient Safety Indicators: Software Documentation, Version 2.1 – SAS. Rockville, MD: Agency for Healthcare Research and Quality, 2003. AHRQ Pub. 03-R203.
Use of AHRQ Quality Indicator Software in Generating NHQR Tables
For measures using HCUP data, the following AHRQ QI software versions were used as the basis for generating the tables in this report: IQI: Version 2.1, release 2; PQI: Version 2.1, release 2; PSI: Version 2.1, release 1. For more information, see the following references:
Barrett ML, Houchen R, Coffey RM, Kelley E, Andrews R, Moy E, Remus D. Technical Specifications for HCUP Measures in the Second National Healthcare Quality Report and National Healthcare Disparities Report.
Coffey RM, Barrett ML, Houchens R, Kelley E, Remus D, Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the Second National Healthcare Quality Report.
Coffey RM, Barrett ML, Houchens R, Moy E, Andrews R, Kelley E, Remus D, Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the Second National Healthcare Disparities Report.