U.S. Department of Health and Human Services Office of Disease Prevention and Health Promotion

Reduce emergency department visits for people aged 5 years and over with asthma — RD‑03 Data Methodology and Measurement

On this page:  About the National Data  |  Methodology  |  History

About the National Data

Data

Data Sources:  National Hospital Ambulatory Medical Care Survey (NHAMCS), CDC/NCHS; Population Estimates, Census

Baseline: 49.6 emergency department visits for asthma per 10,000 persons aged 5 years and over occurred in 2016-18

Target: 40.2 per 10,000

Numerator
Number of visits to the emergency department with a first-listed diagnosis of asthma (ICD-10-CM codes J45.0-J45.998) among persons aged 5 years and over.
Denominator
Number of persons aged 5 years and over.
Target-setting method

Minimal statistical significance

Target-setting method details
Minimal statistical significance, assuming the same standard error for the target as for the baseline.
Target-setting method justification
Trend data using ICD-10-CM were not available to project a target. The standard error was used to calculate a target based on minimal statistical significance, assuming the same standard error for the target as for the baseline. This method was used because it was a statistically significant improvement from the baseline.

Methodology

Methodology notes

FOR MULTIPLE DATA YEARS: Emergency department visit rates are calculated based on sum of July 1 estimates of the civilian noninstitutionalized populations for each of the data years involved (e.g., the denominator of a rate for 2016-2018 combined is the sum of the population estimates for 2016, 2017, and 2018). The population estimates are from the Vintage matching the data year for the postcensal period based on the 2010 census (e.g., July 1, 2016 civilian noninstitutionalized population estimates from Vintage 2016). July 1, 2020 population estimates based on the 2010 census are used for 2020.

History

Comparable HP2020 objective
Modified, which includes core objectives that are continuing from Healthy People 2020 but underwent a change in measurement.
Changes between HP2020 and HP2030
This objective differs from the related Healthy People 2020 objectives in that it is a composite of objectives RD-3.2 and RD-3.3, which tracked emergency department (ED) visits for asthma among persons aged 5 to 64 years, and 65 years and over, respectively. The Healthy People 2020 data used ICD-9-CM codes, while this objective uses ICD-10-CM codes, which were fully transitioned to in 2016. Healthy People 2030 data are age adjusted.
Revision History
Revised. 

In 2022, the baseline was revised from 54.9 per 10,000 in 2013-15 to 49.6 per 10,000 in 2016-18 because NHAMCS completed the transition from ICD-9-CM to ICD-10-CM in 2016. The target was revised from 44.0 per 10,000 to 40.2 per 100,000 using the original target setting method.

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