California Health Interview Survey


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Bigger Cell Phone Sample

In 2009, CHIS expanded its cell phone sample to include those who "mainly" use cell phones and those who "only" use mobile telephones. Children and teens interviews were added to the cell-phone sample as well.

Survey Topics

From asthma, diabetes and obesity to immigrant health and health insurance coverage, CHIS covers dozens of essential health topics. Many core questions are repeated in each survey in order to measure significant shifts over time. New questions are also added each survey year to address emerging concerns that are important for planning and policy development. To see a complete list of the health topics covered by CHIS by two-year cycle, click on the links below: