How to Use the NIS-Teen Vaccination Coverage Data
The National Immunization Survey-Teen (NIS-Teen) has a sample size of about 20,000 parents and caregivers answering the household questionnaire. However, the sample is not the entire population, and thus sample estimates and population values are likely to be different. The magnitude of the likely difference is quantified through the 95% confidence interval (CI). For example, in 2008, the vaccination coverage estimate for 1 dose of meningococcal vaccine in Alabama was 29.9% (CI=24.8-35.5). This means that the true coverage was probably between 24.8% and 35.5%. When comparing two estimates (e.g., between states or between years), an overlap in the confidence intervals indicates that the observed difference might be due to chance.
Images and logos on this website which are trademarked/copyrighted or used with permission of the trademark/copyright or logo holder are not in the public domain. These images and logos have been licensed for or used with permission in the materials provided on this website. The materials in the form presented on this website may be used without seeking further permission. Any other use of trademarked/copyrighted images or logos requires permission from the trademark/copyright holder...more
This graphic notice means that you are leaving an HHS Web site. For more information, please see the Exit Notification and Disclaimer policy.