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Variable Definitions:
Asthma-Related ER Visits: The average number of asthma-related Emergency Room (ER) visits per 10,000 people

CalEnviroScreen 2.0 (2014), CalEnviroScreen 3.0 (2017)

Years Available:

CalEnviroScreen 2.0

Data collected as an average of 2007-2009 and published in 2014

CalEnviroScreen 3.0

Data collected as an average of 2011-2013 and published in 2017

Why are these variables important to measure?

Asthma-Related ER Visits

Asthma is a chronic disease in the lungs that makes it difficult to breathe. It has no cure and occurs in people of all ages, likely from a combination of environmental and genetic factors. Although symptoms are often mild and go away with minor treatment, severe asthma attacks often require emergency care and can be fatal.

On a neighborhood level, high rates of asthma-related Emergency Room visits may be an indication of poor air quality and/or delivery of health services. In these areas, educational campaigns regarding likely causes of asthma and strategies for management of symptoms could be useful in reducing the prevalence of serious asthma attacks.


“Asthma.” National Heart, Lung, and Blood Institute, 2018. Link

Fisher, Edwin B. et al. “Community Organization to Reduce the Need for Acute Care for Asthma Among African American Children in Low-Income Neighborhoods: The Neighborhood Asthma Coalition.” American Academy of Pediatrics, vol. 114, no. 1, 2014, pp. 116-123. Link

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