Filling the need for trusted information on national health issues…

This Kaiser Health Tracking Poll was designed and analyzed by public opinion researchers at the Kaiser Family Foundation (KFF). The survey was conducted October 8-14, 2014, among a nationally representative random digit dial telephone sample of 1,503 adults ages 18 and older, living in the United States, including Alaska and Hawaii (note: persons without a telephone could not be included in the random selection process). Computer-assisted telephone interviews conducted by landline (751) and cell phone (752, including 411 who had no landline telephone) were carried out in English and Spanish by Princeton Data Source under the direction of Princeton Survey Research Associates International (PSRAI). Both the random digit dial landline and cell phone samples were provided by Survey Sampling International, LLC. For the landline sample, respondents were selected by asking for the youngest adult male or female currently at home based on a random rotation. If no one of that gender was available, interviewers asked to speak with the youngest adult of the opposite gender. For the cell phone sample, interviews were conducted with the adult who answered the phone. KFF paid for all costs associated with the survey.

The combined landline and cell phone sample was weighted to balance the sample demographics to match estimates for the national population using data from the Census Bureau’s 2012 American Community Survey (ACS) on sex, age, education, race, Hispanic origin, nativity (for Hispanics only), and region along with data from the 2010 Census on population density. The sample was also weighted to match current patterns of telephone use using data from the July-December 2013 National Health Interview Survey. The weight takes into account the fact that respondents with both a landline and cell phone have a higher probability of selection in the combined sample and also adjusts for the household size for the landline sample. All statistical tests of significance account for the effect of weighting.

The margin of sampling error including the design effect for the full sample is plus or minus 3 percentage points. Numbers of respondents and margin of sampling error for key subgroups are shown in the table below. For results based on other subgroups, the margin of sampling error may be higher. Sample sizes and margin of sampling errors for other subgroups are available by request. Note that sampling error is only one of many potential sources of error in this or any other public opinion poll.

Group N (unweighted) M.O.S.E.
Total 1,503 ±3 percentage points
Party Identification
   Democrats 509 ±5 percentage points
   Republicans 369 ±6 percentage points
   Independents 446 ±5 percentage points
Race/Ethnicity
   White 1064 ±3 percentage points
   Black 147 ±9 percentage points
   Hispanic 163 ±8 percentage points
Education
   High school graduate or less 479 ±5 percentage points
   Some college 415 ±6 percentage points
   College graduate or more 601 ±5 percentage points
Gender
   Men 738 ±4 percentage points
   Women 765 ±4 percentage points
Insurance Status
   Uninsured, ages 18-64 145 ±9 percentage points
   Insured, ages 18-64 910 ±4 percentage points
Registered Voters (RV) 1,268 ±3 percentage points
Party Identification (among RV)
   Democrats 449 ±5 percentage points
   Republicans 346 ±6 percentage points
   Independents 360 ±6 percentage points
Opinion of ACA (among RV)
   Favorable opinion of the ACA 485 ±5 percentage points
   Unfavorable opinion of the ACA 591 ±5 percentage points
Senate Races (among RV)
   States with competitive senate races 219 ±8 percentage points
   States with a non-competitive or no Senate race 1,049 ±4 percentage points
Kaiser Health Tracking Poll: October 2014

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Filling the need for trusted information on national health issues, the Kaiser Family Foundation is a nonprofit organization based in Menlo Park, California.