Number of ED Visits Due to Asthma (N) and Age-Adjusted Rate (per 10,000 Residents), California Counties, Children Age 0-17, 2008

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COUNTY	N	Rate
Imperial	742	164.4
Madera	555	136.0
Fresno	3,151	110.9
Alameda	3,967	107.4
Kings	488	105.3
Merced	856	104.9
Tehama	142	96.8
Contra Costa	2,263	90.5
San Bernardino	4,652	78.0
Inyo	29	76.0
Colusa	48	74.9
Calaveras	58	74.5
Tuolumne	72	74.1
Shasta	308	73.9
Solano	782	72.6
Los Angeles	18,732	68.5
Mendocino	138	67.9
Nevada	115	66.0
Tulare	930	65.9
CALIFORNIA OVERALL	64,933	65.3
Lake	85	65.2
Monterey	796	64.2
Santa Cruz	372	64.0
Sacramento	2,293	60.9
Riverside	3,551	60.8
Humboldt	167	60.4
San Joaquin	1,391	60.1
Kern	1,530	59.6
Del Norte	39	58.8
San Benito	102	58.7
San Diego	4,727	58.6
Stanislaus	953	56.0
Ventura	1,098	51.3
Lassen	32	50.7
San Luis Obispo	254	48.2
Siskiyou	45	47.0
Sonoma	549	46.9
Yuba	105	46.9
Orange	3,729	46.6
San Mateo	759	45.4
San Francisco	573	45.1
Santa Barbara	451	42.6
El Dorado	159	42.3
Yolo	197	41.3
Butte	189	40.9
Santa Clara	1,827	40.1
Placer	308	37.9
Sutter	106	35.7
Amador	21	35.1
Marin	187	34.9
Napa	120	34.5
Glenn	21	25.8
Mariposa	19	-
Plumas	18	-
Trinity	11	-
Mono	8	-
Alpine	<5	-
Modoc	<5	-
Sierra	<5	-

Data Source: Office of Statewide Health Planning and Development (OSHPD), 2008

*An asthma emergency department (ED) visit is an admission to a licensed ED in California with the primary diagnosis of asthma. The rate of asthma hospitalizations is the number of hospitalizations per 10,000 residents, age-adjusted to the 2000 U.S. population. Population denominators for rates are from the California Department of Finance. Rates based on numbers <20 are not reported.