Asthma Emergency Department Visit Rates

This dataset contains counts and rates (per 10,000 residents) of asthma emergency department (ED) visits among Californians. The table “Asthma Emergency Department Visit Rates by County” contains statewide and county-level data stratified by age group (all ages, 0-17, 18+, 0-4, 5-17, 18-64, 65+) and race/ethnicity (white, black, Hispanic, Asian/Pacific Islander, American Indian/Alaskan Native). The table “Asthma Emergency Department Visit Rates by ZIP Code” contains zip-code level data stratified by age group (all ages, 0-17, 18+). The data are derived from the Department of Health Care Access and Information emergency department database. These data include emergency department visits from all licensed hospitals in California. These data are based only on primary discharge diagnosis codes. On October 1, 2015, diagnostic coding for asthma transitioned from ICD9-CM (493) to ICD10-CM (J45). Because of this change, CDPH and CDC do not recommend comparing data from 2015 (or earlier) to 2016 (or later). NOTE: Rates are calculated from the total number of asthma emergency department visits (not the unique number of individuals).

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Data and Resources

Additional Info

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Field Value
Contact Email [email protected]
Program California Department of Public Health, California Breathing Asthma Program
Homepage URL https://www.cdph.ca.gov/Programs/CCDPHP/DEODC/EHIB/CPE/Pages/CaliforniaBreathing.aspx
Temporal Coverage

2015-current (ED visits by county, age group, and race/ethnicity); 2009, 2012-current (ED visits by zip code and age group)
Spatial/Geographic Coverage

California
Geographic Granularity ZIP Code
Language English (EN)
Frequency Annually
De-Identification Method

For "Total Population" stratum, counts ≤ 5 and their rates are suppressed in accordance with CalHHS Data De-identification Guidelines. For all other strata, counts < 11 and their rates are suppressed in accordance with guidelines. For all data, rates based on counts < 12 are suppressed due to statistical instability.
Source Link https://www.cdph.ca.gov/Programs/CCDPHP/DEODC/EHIB/CPE/Pages/CaliforniaBreathingCountyAsthmaProfiles.aspx
Data Collection Tool

Emergency Department data from the California Department of Health Care Access and Information
License Terms of Use
Limitations Use of this data is subject to the CHHS Terms of Use and any copyright and proprietary notices incorporated in or accompanying the individual files.
Secondary Sources

www.hcai.ca.gov
Last Updated August 24, 2023, 15:52 (UTC)