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

CHIS covers numerous health-related topics, including asthma, sources of care, physical activity, diet, doctor visits, mental health, and health insurance coverage.
 
Core CHIS questions are repeated year to year to measure shifts over time. New questions are added each survey year to study emerging public health concerns.