Healthcare Use Data 2013

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, 2013
Characteristics	Weighted No. of Visits	Standard Error of Weighted No. of visits	*Rate^ (SE)**
2013 Physician Office Visits
Total	9,458,580	790,133	304.2 25.4
Child (aged 0-17 years)†	3,284,593	368,466	447.2 (50.2)
Adult (aged 18+ years)^§	6,173,987	645,334	260.0 (27.2)
Sex
Male	3,851,506	384,699	253.5 (25.3)
Female	5,607,074	563,023	352.6 (35.4)
Race, not considering ethnicity
White	7,602095	705,589	314.2 (29.2)
Black	1,335,128	181,499	331.7 (45.1)
Other	521,358	126,546	181.3 (44.0)
Ethnicity
Hispanic or Latino	1,368,202	257,875	256.1 (48.3)
Not Hispanic or Latino	8,090,378	706,231	314.2 (27.4)
Age Group
0-4 years	872,485	159,958	439.3 (80.5)
5-17 years	2,412,108	280,360	450.2 (52.3)
18-34 years	963,942	192,984	133.6 (26.7)
35-64 years	3,607,353	426,563	295.9 (35.0)
65+ years	1,427,224	225,213	328.8 (51.9)
U.S. Census Region
Northeast	2,635,899	469,729	477.6 (85.1)
Midwest	2,040,173	304,796	306.6 (45.8)
South	3,014,938	453,351	259.8 (39.1)
West	1,767,570	324,404	241.7 (44.4 )
MSA status
MSA	8,862,328	776,363	330.4 (28.9)
Non-MSA	596,252	159,908	139.7 (37.5 )

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 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

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, 2013
Characteristics	Weighted No. of Visits	Standard Error of Weighted No. of visits	*Rate^ (SE)**
2013 Emergency Department (ED) Visits
Total	1,631,391	168,953	52.5 ( 5.4)
Child (aged 0-17 years)†	630,474	120,203	85.8 (16.4)
Adult (aged 18+ years)^§	1,000,917	115,035	42.1 ( 4.8)
Sex
Male	779,988	118,787	51.3 ( 7.8)
Female	851,403	114,250	53.5 ( 7.2)
Race, not considering ethnicity
White	941,532	134,318	38.9 ( 5.6)
Black	603,005	83,069	149.8 (20.6)
Other^¶	—	—	—
Ethnicity
Hispanic or Latino	304,009	59,285	56.9 (11.1)
Not Hispanic or Latino	1,327,382	134,110	51.5 ( 5.2)
Age Group
0–4 years	252,615	72,853	127.2 (36.7)
5–17 years	377,859	68,853	70.5 (12.9)
18–34 years	351,059	61,551	48.6 ( 8.5)
35–64 years	515,612	74,849	42.3 ( 6.1)
65+ years	93,541	26,427	21.5 ( 6.1)
U.S. Census Region
Northeast	387,672	63,608	70.2 (11.5)
Midwest	300,320	75,268	45.1 (11.3)
South	587,348	96,143	50.6 ( 8.3)
West	356,051	97,931	48.7 (13.4)
MSA status
MSA	1,424,648	176,817	53.1 ( 6.6)
Non-MSA^¶	—	—	—

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

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

•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.** Number and rate of hospital inpatient stays with asthma as the primary diagnosis per 10,000 population, by selected patient characteristics: United States, 2013
Characteristics	Weighted No. of Visits	Rate^*
2013 Hospital Inpatient Stays
Total	347,190	11.0
Child (aged 0-17 years)†	100,765	13.7
Adult (aged 18+ years)^§	246,255	10.2
Sex
Male	133,320	8.6
Female	213,830	13.3
Age Group
<1 year	4,050	10.3
1-17 years	96,715	13.9
18-44 years	59,840	5.2
45-64 years	104,560	12.6
65-84 years	67,260	17.4
85+ years	14,595	24.2
U.S. Census Region
Northeast	84,720	15.1
Midwest	75,875	12.2
South	129,355	10.9
West	57,240	7.7
MSA status^¶
MSA	300,475	11.2
Non-MSA	45,075	10.6

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/