US emergency department data A source for injury

US emergency department data: A source for injury indicator development Lois Fingerhut U. S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention National Center for Health Statistics

National Hospital Ambulatory Medical Care Survey- ED component Variables of interest: – ICD-9 CM diagnosis codes – ICD-9 CM external cause of injury codes – Coding by medical records staff in hospitals – Initial visit or not (since 2001) – Disposition post-ED visit

292 million 110. 2 million 31. 4 million Civilian population of US Number of ED visits Initial ED visits for injury (28% of ED visits)

US Results 31. 4 million initial ED visits for an injury in one year 10, 731/100, 000 population 6% admitted to hospital 0. 1% died in hospital

Percent of initial ED visits for injury that resulted in hospitalization: US 2001 -2004 By year Source: NCHS, NHAMCS-ED data By age, 2004

ED visits: US, 2003 -04 1 st listed external cause of injury % of all injury visits % of injury visits that are initial visits Fall 24 93 10 Struck 14 93 2 MVT 13 91 6 Cut/pierce 8 90 3 Poisoning 4 90 23 Firearm 0. 3 82 18 Source: NCHS, NHAMCS-ED data % of initial injuries that are hospitalized

Percent of initial injury visits that resulted in hospitalization by selected nature of injury groups : US, 2003 -04 Source: NCHS, NHAMCS-ED data

ED visits: US, 2003 -04 1 st listed injury dx % of all injury visits % of injury visits that are initial visits % of initial injuries that are hospitalized Superficial/ contusions Open wounds 19 94 1 19 90 2 Sprains / strains Fractures 17 92 0. 4 11 93 15 5 93 13 System wide Source: NCHS, NHAMCS-ED data

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