Healthcare Use Data 2016

Health care use asthma surveillance data tables include estimates for physician office visits from the National Ambulatory Medical Care Survey (NAMCS), emergency department visits from the National Hospital Ambulatory Medical Care Survey (NHAMCS), and hospital inpatient stays from the Healthcare Cost and Utilization Project (HCUP) at the national level.

**Table A**. Physician office visits with asthma as the primary diagnosis per 10,000 population, by selected patient characteristics: United States, 2016
Characteristics	2016 Physician Office Visits
Characteristics	Weighted No. of Visits	Standard Error of Weighted No. of Visits	*Rate^ (SE)**
Total	9,789,350	2,140,029	307.8 (67.3)
Child (aged 0-17 years)†	2,446,609	651,905	332.9 (88.7)
Adult (aged 18+ years)^§	7,342,741	1,996,066	300.3 (81.6)
Sex
Male	4,062,545	1,030,296	261.4 (66.3)
Female	5,726,805	1,423,649	352.2 (87.6)
Race, not considering ethnicity
White	7,688,924	1,894,064	313.8 (77.3)
Black^¶	1,518,721	471,711	—
Other^¶	581,705	486,786	—

Abbreviations: MSA, Metropolitan Statistical Area; SE, standard error.

* Crude rate per 10,000 population and SE, standard error.

† Rate of child physician office visits was calculated using the weighted number of visits for children aged 0-17 years and dividing it by the civilian non-institutionalized population for children aged 0-17 years per 10,000.

^§ Rate of adult physician office visits was calculated using the weighted number of visits for adults aged 18+ years divided by the civilian non-institutionalized population for adults aged 18+ years per 10,000.

^¶Estimate is suppressed because relative standard error (RSE) of the estimate is >30%. ftp://ftp.cdc.gov/pub/Health_Statistics/NCHS/Dataset_Documentation/NAMCS

Note: not enough sample size to present the results for ethnicity, detailed age groups, U.S. Census Regions, and MSA status.

SOURCE: CDC/NCHS. National Ambulatory Medical Care Survey (NAMCS). https://www.cdc.gov/nchs/ahcd/about_ahcd.htm

Table B. Emergency department visits (ED) with asthma as the primary diagnosis per 10,000 population, by selected patient characteristics: United States, 2016
Characteristics	2016 Emergency Department (ED) Visits
Characteristics	Weighted No. of Visits	Standard Error of Weighted No. of Visits	*Rate^ (SE)**
Total	1,776,851	204,136	55.9 ( 6.4)
Child (aged 0-17 years)†	546,013	98,935	74.3 (13.5)
Adult (aged 18+ years)^§	1,230,838	162,841	50.3 ( 6.7)
Sex
Male	701,071	98,657	45.1 ( 6.3)
Female	1,075,780	149,922	66.2 ( 9.2)
Race, not considering ethnicity
White	1,051,527	166,935	42.9 ( 6.8)
Black	670,940	94,570	161.1 (22.7)
Other^¶	54,384	19,670	—
Ethnicity
Hispanic or Latino	452,265	100,494	79.6 (17.7)
Not Hispanic or Latino	1,324,586	154,961	50.7 ( 5.9)
Age Group
0–4 years	175,200	44,039	87.9 (22.1)
5–17 years	370,813	74,511	69.2 (13.9)
18–34 years	594,213	108,041	80.9 (14.7)
35–64 years	505,449	84,062	41.0 ( 6.8)
65+ years^¶	126,480	50,342	—
U.S. Census Region
Northeast	353,039	77,788	63.6 (14.0)
Midwest†	334,786	74,236	50.0 (11.1)
South	648,023	128,009	54.0 (10.7)
West	441,004	117,146	58.4 (15.5)
MSA status
MSA	1,481,170	188,938	54.1 ( 6.9)
Non-MSA^¶	295,682	122,585	—

Abbreviations: MSA, Metropolitan Statistical Area; SE, standard error.

* Crude rate per 10,000 population and SE, standard error.

† Rate of child emergency department visits was calculated using the weighted number of visits for children aged 0-17 years and dividing it by the civilian non-institutionalized population for children aged 0-17 years per 10,000.

^§Rate of adult emergency department visits was calculated using the weighted number of visits for adults aged 18+ years divided by the civilian non-institutionalized population for adults aged 18+ years per 10,000.

^¶Estimate is suppressed because relative standard error (RSE) of the estimate is >30%.
ftp://ftp.cdc.gov/pub/Health_Statistics/NCHS/Datasets/NHAMCS

SOURCE: CDC/NCHS. National Hospital Ambulatory Medical Care Survey (NHAMCS). https://www.cdc.gov/nchs/ahcd/about_ahcd.htm

**Table C.** Hospital inpatient stays with asthma as the primary diagnosis per 10,000 population, by selected patient characteristics: United States, 2016
Characteristics	2016 Hospital Inpatient Stays
Characteristics	Weighted No. of Visits	Rate^*
Total	188,968	5.9
Child (aged 0-17 years)†	80,235	10.7
Adult (aged 18+ years)^§	108,505	4.4
Sex
Male	78,010	4.9
Female	110,905	6.8
Age Group
<1 year	2,040	5.1
1-17 years	78,195	11.2
18-44 years	42,900	3.7
45-64 years	41,590	4.9
65-84 years	19,885	4.6
85+ years	4,130	6.5
U.S. Census Region
Northeast	50,085	8.9
Midwest	35,135	5.2
South	69,730	5.7
West	34,015	4.4
MSA status^¶
MSA	169,870	6.2
Non-MSA	18,410	4.0

Abbreviations: MSA, Metropolitan Statistical Area.

* Crude rate per 10,000 population (Standard error [SE] is not available).

^†Rate of child hospital inpatient stays was calculated using the weighted number of visits for children aged 0-17 years and dividing it by the civilian non-institutionalized population for children aged 0-17 years per 10,000.

^§Rate of adult hospital visits was calculated using the weighted number of visits for adults aged 18+ years divided by the civilian non-institutionalized population for adults aged 18+ years per 10,000.

^¶Rate of MSA hospital inpatient stays was calculated by combining the weighted number of visits for large central metro, large fringe metro (suburbs), medium and small metro categories and dividing it by the civilian non-institutionalized population for MSA per 10,000. Rate of non-MSA hospital inpatient stays was calculated using the weighted number of visits for the micropolitan and noncore (rural) category and dividing it by the civilian non-institutionalized population for non- MSA per 10,000.

SOURCE: HCUPnet, Healthcare Cost and Utilization Project. Agency for Healthcare Research and Quality, Rockville, MD. https://hcupnet.ahrq.govexternal icon/. For more information about HCUP data see http://www.hcup-us.ahrq.gov/external icon

Page last reviewed: May 22, 2019

Content source: National Center for Environmental Health