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2005 National Healthcare Quality Report

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Obstetric trauma—vaginal with instrument

Measure Source

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


2.20 Obstetric trauma with 3rd degree, 4th degree, or other obstetric lacerations per 1,000 instrument-assisted vaginal deliveries, United States, 2001 and 2002.

Data Source

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


All vaginal delivery hospital discharges with any procedure indicating instrument-assisted delivery.


Subset of the denominator with any diagnosis or procedure indicating obstetric trauma.


Rates are adjusted by age. When reporting is by age, there is no adjustment.

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.

This table was created using version 2.1, revision 2, of the AHRQ PSI software. This measure is referred to as indicator 27 in the software documentation. Further information about this and other safety and quality indicators is available from the AHRQ Quality Indicators website at

Obstetric trauma—vaginal without instrument. Reclosure of postoperative disruption of abdominal wall (discharge-based) and reclosure of postoperative disruption of abdominal wall (area-based).


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