Table of Contents
National Immunization Survey-Child (NIS-Child) 2018, Texas
Immunization
coverage among Texas children at 24 months of age
Source: CDC NIS Report
About the National Immunization Survey (NIS)
The
NIS-Child is a national survey conducted annually by the Centers for Disease
Control and Prevention to assess immunization levels among pre-school children (at
2 years of age for most immunizations). The NIS is the only population-based
survey to provide national, state, local area, and territorial estimates of
vaccination coverage among children in the United States. This study collects
data by administering telephone surveys to randomly selected households. To
ensure the accuracy and precision of the vaccination coverage estimates,
immunization data for surveyed children are also collected through a mail survey
of their pediatricians, family physicians, and other health care providers. The
parents and guardians of eligible children are asked during the telephone
interview for consent to contact the children’s vaccination providers. Types of
immunizations, dates of administration, and additional data about facility
characteristics are requested from immunization providers that are identified
during the telephone survey of households. Data are weighted to be
representative of the population of children 24 months of age, and are adjusted
for multiple phone lines, mixed telephone lines (i.e., landline and cellular),
household nonresponse, and the exclusion of phoneless households.
The
NIS provides national and state estimates of vaccination coverage, including new
vaccines as they are licensed and recommended for use. The survey also tracks
progress towards Healthy
People 2020 goals.
CDC
changed the way that NIS results are reported starting in 2019. In the past,
results were reported for children 19-35 months of age at the time of the
survey. Now, results for most vaccines are reported at 24 months of age, by
birth year (i.e. coverage is reported among 2-year-olds born in 2015). Certain vaccines
(Hepatitis B birth dose and Rotavirus) are reported at younger ages because
they are completed before 24 months.
Survey Sample
The
survey assessed the immunization histories of over 25,000 children in the
United States born in 2015 and 2016. Coverage estimates for children born in
2016 are preliminary, because some had not yet reached 24 months of age at the
time of the most recent survey.
Vaccines Included
The NIS collects information on the following
vaccine series to assess the percent of children that are up to date with
routinely recommended vaccinations:
- Diphtheria
and tetanus toxoids and acellular pertussis vaccine (DTaP/DT/DTP)
- Poliovirus
vaccine (Polio)
- Measles
or Measles-Mumps-Rubella vaccine (MMR)
- Haemophilus
influenzae
type b vaccine (Hib)
- Hepatitis
B vaccine (HepB)
- Varicella
vaccine (Var)
- Pneumococcal
conjugate vaccine (PCV)
- Hepatitis
A vaccine (HepA)
- Rotavirus
vaccine
- Influenza
(Flu)
- 4:3:1:3*:3:1:4
series
-
≥4
doses of DTaP
- ≥3
doses of Polio
- ≥1
dose of MMR
- ≥3
doses of Hib (*3 or 4 doses depending on vaccine type)
- ≥3
doses of HepB
- ≥1
dose of Var
- ≥4
doses of PCV
The
4:3:1:3*:3:1:4 series reflects vaccine coverage for seven key vaccines
combined. It measures overall compliance with the recommendations of the
Advisory Committee on Immunization Practices (ACIP) for young children.
NIS
Coverage Estimates
NIS Vaccination Coverage Levels
a 3 or 4 doses of Hib vaccine, depending on vaccine type.
f 4+ DTaP, 3+ polio, 1+ MMR, 3 or 4 doses Hib, depending on vaccine type, 3+ HepB, 1+ Var, and 4+ PCV.
For access to the full dataset, please see the
CDC Data and Documentation for NIS Surveys page.
Archived Survey Results
View survey results from prior years: