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Indicator Report - Asthma-related Emergency Department (ED) Visits

Why Is This Important?

Asthma can usually be managed in an outpatient setting, reducing the need for emergency department visits. Tracking rates of emergency department visits can aid in identifying populations or areas with inadequate access to routine medical care.

An asthma attack can necessitate an emergency department visit and can be initiated by a variety of triggers. Some of these include exposures to environmental tobacco smoke, dust mites, cockroach allergen, mold, pets, strenuous physical exercise, and air pollution. Two key air pollutants that can affect asthma are ozone (found in smog) and PM or particulate matter (found in haze, smoke, and dust).

The majority of problems associated with asthma, including emergency department visits, are preventable if asthma is managed according to established guidelines. Effective management includes control of exposures to factors that trigger exacerbations, adequate pharmacological management, continual monitoring of the disease, and patient education in asthma care.

Emergency Department Visits due to Asthma by Year, Utah, 2000-2012

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Data Notes

The ICD-9 code used to define asthma is 493. All ED encounters are included in the presented data, which includes those that were treat and release visits, as well as those that resulted in hospital admission.   Age-adjusted to the U.S. 2000 standard population.

Data Sources

Emergency Department Encounter Database, Bureau of Emergency Medical Services, Utah Department of Health. Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2013.

Other Views


Rate: Emergency department visits due to asthma (ICD-9 code 493) per 10,000 Utah residents.
Number: Emergency department visits due to asthma.

How We Calculated the Rates

Numerator: Rate/Number: Number of emergency department visits among the Utah population with asthma as the principle diagnosis.
Denominator: Rate: Utah Population. Number: Not applicable.

Page Content Updated On 12/12/2014, Published on 03/03/2015
The information provided above is from the Utah Department of Health's Center for Health Data IBIS-PH web site ( The information published on this website may be reproduced without permission. Please use the following citation: "Retrieved Mon, 06 July 2015 18:36:00 from Utah Department of Health, Center for Health Data, Indicator-Based Information System for Public Health Web site:".

Content updated: Tue, 3 Mar 2015 16:43:48 MST