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Table T8_4_1_1-2

2012 National Healthcare Quality and Disparities Reports

This appendix provides detailed data tables for all measures analyzed for the 2012 National Healthcare Quality and Disparities Reports. Tables are included for measures discussed in the main text of the reports as well as for other measures that were examined but not included in the main text.
Table 8_4_1_1.2
Level III trauma center utilization per 100 emergency department visits related to severe injuries,a United States, 2009
Population groupPercentbSE
Total 7.8DNA
65 and over8.00.9
Median income of patient's ZIP codeFirst quartile (lowest income)8.52.0
Second quartile9.21.5
Third quartile8.31.4
Fourth quartile (highest income)4.51.3
Location of patient residenceLarge central metropolitanDSUDSU
Large fringe metropolitan3.00.5
Medium metropolitan4.31.2
Small metropolitan30.44.9
Region of inpatient treatmentNortheast1.80.5

a Severity of injuries is defined using the International Classification of Diseases programs for injury categorization (ICDPIC). The ICDPIC translates ICD-9 diagnosis codes into several standard injury categories or scores, including Injury Severity Score (ISS). An ISS of 16 or greater is classified as severe.

b Percentage of visits treated at level III trauma centers. Remaining percentages were treated at level I or level II trauma centers or nontrauma units.  

Key: SE: standard error.

Source: Agency for Healthcare Research and Quality (AHRQ), Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample and Nationwide Emergency Department Sample, and AHRQ Quality Indicators, modified version 4.1.

Page last reviewed June 2013
Internet Citation: Table T8_4_1_1-2: 2012 National Healthcare Quality and Disparities Reports. June 2013. Agency for Healthcare Research and Quality, Rockville, MD.


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