Healthcare Use Data 2016

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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
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
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
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.gov/. For more information about HCUP data see http://www.hcup-us.ahrq.gov/

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