How many California kids have asthma? Maybe more than you thought.

As the most common chronic condition among children in the U.S., asthma affects roughly 14% of California children ages 1 to 17 — about 1.3 million kids. These data, collected by the California Health Interview Survey, recently were updated on kidsdata.org and are available for most counties.

Also just updated, the rate of asthma hospitalizations among California children ages 0-17 increased slightly from 2008-2009, but is down overall since 1998. Thanks to the California Department of Public Health for these data.

Here are a few more highlights:

• Asthma hospitalization rates in 2009 were three times higher for California children ages 0-4 than for children ages 5-17. In 2009, more California children under age 5 were hospitalized for asthma (6,288) than all older children (those ages 5-17) combined.

• Among California counties with available data, the percentage of children diagnosed with asthma varied widely, from 8% to 31%.

• Among California counties with available data, Alameda, Fresno and Imperial had the highest childhood asthma hospitalization rates from ’06 to ’09.

Posted by kidsdata.org

Tags: New Data

Children’s environmental health is an emerging area of research. While available data do not yet address all aspects of environmental health, kidsdata.org just launched five key measures with local data to draw attention to environmental influences on children’s health and to encourage exploration of these issues.

What are environmental influences on kids’ health? Examples include air pollution from traffic, lead in old paints and plastic, pesticides, and chemical contaminants in tap water. These environmental pollutants can put children at risk of developing serious illnesses, such as respiratory disease (e.g., asthma), cognitive defects, and cancer^1,2.

Here’s more about the new measures on kidsdata.org and why they matter:

Air Quality
Long-term exposure to high levels of ozone (the primary constituent of smog), as well as high concentrations of fine particulate matter in the air (largely from motor vehicle exhaust), are associated with a variety of breathing and heart problems^3,4. Children living within 75 meters of a major road are at significantly higher risk for developing asthma and have a greater number of asthma-related emergency room visits than children who live fartherfrom traffic⁵. See related data >>

Lead Poisoning
Lead, found mostly in old/chipping paint and contaminated soil, can cause low IQ scores, behavioral problems, seizures, and coma at different levels of exposure⁶. Children are especially vulnerable to toxic substances such as lead, as their systems are more fragile and their skin is more permeable. Young children also come into greater contact with toxins by playing or crawling on the ground, and through hand-mouth contact⁷. See related data >>

Water Quality
Levels of contamination that exceed the maximum allowed for drinking water — and documented failure to monitor drinking water contamination — indicate a higher risk of childhood exposure to toxic levels of bacteria, metals, and chemical residue. See related data >>

Sex Ratio at Birth
Environmental factors, such as exposure to endocrine disruptors (synthetic chemicals that mimic or block hormones) and second-hand smoke, may influence the sex ratio at birth by affecting human sex hormones and their regulation. The expected ratio of males to females born is 1.05 males to every 1 female (1.05:1). Concern mounts when there are fewer males than females born, i.e., less than 1 male to every 1 female⁸. See the data >>

Indicators within all of these topics will be updated and expanded as new data emerge. We welcome your feedback and insights on these new important measures of child well being.

Also see kidsdata.org’s Research & Links section for websites and reports with more information related to environmental health.

(2) California Department of Public Health (CDPH). (2009). Prematurity & Growth Retardation.
http://www.ehib.org/page.jsp?page_key=69

(3) California Department of Public Health. (2009). Air Contaminants: Particulate Matter.
http://www.ehib.org/page.jsp?page_key=90#pm_health

(4) United States Environmental Protection Agency.(2011). Ground-level Ozone. http://www.epa.gov/glo/

(5) McConnell, et al. (2006). “Traffic, Susceptibility, and Childhood Asthma.” Environmental Health Perspectives, 114(5), 766–772. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1459934/

(6) Godwin, H. (2009). “Southern California Environmental Report Card: Lead Exposure and Poisoning in Children.” UCLA Institute of the Environment.
http://www.environment.ucla.edu/reportcard/article.asp?parentid=3772

(7) United States Environmental Protection Agency. (2007). A Decade of Children’s Environmental Health Research: Highlights from EPA’s Science to Achieve Results Program. http://www.epa.gov/ncer/publications/research_results_synthesis/

(8) Centers for Disease Control and Prevention. (2010). Sex Ratio and the Environment.
http://ephtracking.cdc.gov/showRbSrEnv.action

Posted by Andy Krackov

Tags: New Data