Summary
The 2012 Health Survey, sponsored by the Pew Research Center’s Internet & American Life Project and
the California HealthCare Foundation, obtained telephone interviews with a nationally representative
sample of 3,014 adults living in the United States. Telephone interviews were conducted by landline
(1,808) and cell phone (1,206, including 624 without a landline phone). The survey was conducted by
Princeton Survey Research Associates International. Interviews were done in English and Spanish by
Princeton Data Source from August 7 to September 6, 2012. Statistical results are weighted to correct
known demographic discrepancies. The margin of sampling error for the complete set of weighted data
is ±2.4 percentage points.
DESIGN AND DATA COLLECTION PROCEDURES
SummaryThe 2012 Health Survey, sponsored by the Pew Research Center’s Internet & American Life Project andthe California HealthCare Foundation, obtained telephone interviews with a nationally representativesample of 3,014 adults living in the United States. Telephone interviews were conducted by landline(1,808) and cell phone (1,206, including 624 without a landline phone). The survey was conducted byPrinceton Survey Research Associates International. Interviews were done in English and Spanish byPrinceton Data Source from August 7 to September 6, 2012. Statistical results are weighted to correctknown demographic discrepancies. The margin of sampling error for the complete set of weighted datais ±2.4 percentage points.DESIGN AND DATA COLLECTION PROCEDURES
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