Measure Source

Agency for Healthcare Research and Quality (AHRQ) Patient Safety Indicators (PSI).

Tables

2.4a Table not included because all sample estimates were too small to be reliable.

2.4b Transfusion reactions per 100,000 population (excluding neonates), United States, 2001 and 2002.

Data Source

AHRQ, Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project (HCUP), Nationwide Inpatient Sample.

Denominator

Table 2.4a: All non-neonatal medical and surgical inpatient hospital discharges.

Table 2.4b: U.S. population.

Numerator

Table 2.4a: Non-neonatal medical and surgical discharges with any secondary diagnosis indicating transfusion reaction (ICD-9-CM 9996, 9997, E8760).

Table 2.4b: Non-neonatal medical and surgical discharges with any principal or secondary diagnosis indicating transfusion reaction.

Comments

Table 2.4a: No risk-adjustment is performed because outcome of interest is relatively rare event.

Table 2.4b: Rates are adjusted by age and gender using the total U.S. population for 2000 as the standard population. When reporting is by age, the adjustment is by gender only; when reporting is by gender, the adjustment is by age only.

Although not all States participate in the HCUP database, the Nationwide Inpatient Sample is weighted to give national estimates using weights based on all U.S. community, non-rehabilitation hospitals in the American Hospital Association Annual Survey of Hospitals.

These tables were created using version 2.1, revision 2, of the AHRQ PSI software. These measures are referred to as indicator 16 (discharge-based, table a) and 26 (area-based, table b) in the software documentation Further information about this and other safety and quality indicators is available from the AHRQ Quality Indicators website at http://www.qualityindicators.ahrq.gov.