2006 to present
Mode of Collection
Sample survey: Telephone interview (cell only) to parents or guardians of adolescents aged 13-17 years followed by a mailed questionnaire to adolescents' immunization providers.
The National Immunization Surveys (NIS) are a group of telephone surveys used to monitor vaccination coverage among children and teens. The surveys are sponsored by the Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases (CDC, NCIRD) and conducted by the National Opinion Research Center (NORC). The NIS-Teen is a random-digit-dialing telephone survey of parents or guardians of teens ages 13 to 17 years, followed by a mailed survey to the teens' immunization providers. Data from the NIS-Teen are used to produce current, population-based, state, selected local areas and territorial estimates of vaccination coverage for all age-appropriate vaccinations recommended by the Advisory Committee on Immunization Practices (ACIP). Teens are classified as being up to date based on the ACIP-recommended numbers of doses for each vaccine.
Coverage among teens for the following routine adolescent vaccines: tetanus, diphtheria, acellular pertussis (Tdap); meningococcal conjugate (MenACWY); human papillomavirus (HPV); and influenza vaccine (Flu).
The target population for the NIS-Teen is persons ages 13 to 17 years living in non-institutionalized households in the United States at the time of the interview.
The NIS-Teen collects data through telephone interviews with parents or guardians of teens ages 13 to 17 years in all 50 states, the District of Columbia, selected local areas and territories. Cell phone numbers are randomly selected and called to enroll one or more age-eligible teens from the household. The parents and guardians of eligible teens are asked during the interview for the names of their teen's vaccination providers and permission to contact them. With this permission, a questionnaire is mailed to each teen's vaccination provider(s) to collect the information on the types of vaccinations, number of doses, dates of administration, and other administrative data about the health care facility. NIS-Teen coverage estimates are based on a provider-reported vaccination history; data from responding providers are combined to create a synthesized vaccination history for each teen. Estimates of vaccination coverage are determined for those vaccinations recommended by the Advisory Committee on Immunization Practices (ACIP). Teens are classified as being up to date based on the ACIP-recommended numbers of doses for each vaccine. In 2018, the NIS-Teen began using a single-frame sample of cell phone lines. The landline telephone-sample frame that was used from 2006 through 2017 was dropped because of the declining number of landline-only households in the United States. Data are weighted and analyzed to account for the sampling design.
Response Rates and Sample Size
In 2018, completed telephone interviews were obtained for 38,706 adolescents ages 13 to 17 years (71.9%). Vaccination coverage estimates were available for 18,700 adolescents with adequate provider data (48.3 % of those with completed interviews).
- National Immunization Survey — Teen: Data Users Guide for the 2018 Public Use Data File.
- Walker TY, Elam-Evans LD, Yankey D, et al. National, Regional, State, and Selected Local Area Vaccination Coverage Among Adolescents Aged 13–17 Years — United States, 2018. MMWR Morb Mortal Wkly Rep 2019;68:718–723.