National Immunization Survey (NIS) - Vaccination Coverage Levels


Table of Contents


National Immunization Survey (NIS) 2017, Texas

Immunization coverage among Texas children aged 19-35 months 

Source: CDC NIS Tables

About the National Immunization Survey (NIS)

The NIS is a national survey conducted annually by the Centers for Disease Control and Prevention to assess immunization levels among pre-school children 19 through 35 months old. 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 19 through 35 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. There is another survey, called the  NIS-Teen, which assesses immunization levels among teens 13-17 years of age.

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

Survey Sample

The survey assessed the immunization histories of approximately 15,000 children in the United States, aged 19 through 35 months with provider-reported vaccination records. These children were born January 2014 through May 2016.

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)
  • Rotavirus vaccine (ROT)
  • Hepatitis A vaccine (HepA)
  • Influenza vaccine (reported separately through NIS-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 the vaccine type)
    • ≥3 doses of HepB
    • ≥1 dose of Var
    • ≥4 doses of PCV

The 4:3:1:3:3:1:4 series is a marker reflecting coverage for seven key vaccine series combined. The 4:3:1:3:3:1:4 series is a representation of overall compliance for vaccines recommended by the Advisory Committee on Immunization Practices (ACIP) for children ages 19-35 months of age.  

2017 NIS Coverage Estimates 

NIS-Child Immunization Coverage Levels in Texas and U.S., 2016-2017  
 Vaccine  U.S. National Average 2016 
Texas 2016
 Texas 2017 
 ≥4 doses of DTaP 
 83.2% 
 81.3%  81.2%
 ≥3 doses of Polio  92.7% 
 90.1%  93.1%
 ≥1 dose of MMR   
 91.5%  89.8%  90.3%
 Hib   
 80.7% 
 80.0%  80.9%
 ≥3 doses of HepB   
 91.4%  88.3%  90.1%
 HepB birth dose§   
 71.4%  76.4%  76.3%
 ≥1 dose of Var   
 91.0%  90.4%  89.1%
 ≥4 doses of PCV   
 82.4%  82.4%  83.0%
 ≥2 doses of HepA   
 59.7%  60.5%  62.7%
 Rotavirus   
 73.2%  72.7%  76.0%
 4:3:1:3:3:1:4 series*   
 70.4%  69.5%  67.8%

† 3 or 4 doses of Hib vaccine, depending on vaccine type. 
§ Coverage estimates by birth cohort. Estimates presented are for children born in 2012-2015. 
¶ 2 or 3 doses, depending on vaccine type. 
† 3 or 4 doses of Hib vaccine, depending on vaccine type. 
*4+ DTaP, 3+ polio, 1+ MMR, 3 or 4 doses Hib, depending on vaccine type, 3+ HepB, 1+ Var, and 4+    

NIS Vaccination Coverage Levels

  NIS-Child Immunization Coverage All Immunizations, 2017   
 3 or 4 doses of Hib vaccine, depending on vaccine type.
*4+ DTaP, 3+ polio, 1+ MMR, 3 or 4 doses Hib, depending on vaccine type, 3+ HepB, 1+ Var, and 4+ PCV.

  
NIS-Child Immunization Coverage estimates with 95% Confidence Intervals for the 4:3:1:3:3:1:4 Series in the U.S., Texas. And Local Jurisdictions, 2017 
U.S. National Texas City of Houston 
Bexar County El Paso County Dallas County 
Travis County
Percentage Vaccinated 70.4% (±1.5%) 
67.8% (±3.5%) 
74.3% (±9.1%) 
75.6% (±6.5%) 
 66.2 (±8.0%) 65.6% (±8.9%) 
66.7% (±6.9%) 

 3 or 4 doses of Hib vaccine, depending on vaccine type.


 For access to the full dataset, please see the CDC Data and Documentation for NIS Surveys page.


National Immunization Survey-Teen (NIS-Teen) 2017, Texas

Immunization coverage among Texas teens 13-17 years old

About the National Immunization Survey-Teen (NIS-Teen)

The NIS-Teen is a national survey conducted annually by the CDC to assess immunization levels for adolescents 13-17 years of age. This study collects data by interviewing households in all 50 States, the District of Columbia, and selected areas for oversampling. The interviews are conducted by telephone, with households selected at random. To ensure the accuracy and precision of the vaccination coverage estimates, immunization data for surveyed adolescents are also collected through a mail survey of their pediatricians, family physicians, and other health care providers. The parents and guardians of eligible adolescents are asked during the telephone interview for consent to contact the adolescents’ 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. The NIS-Teen’s estimates of adolescent vaccination coverage reflect a comparison of information provided by both surveyed households and immunization providers.

The NIS-Teen was established to provide an on-going, consistent data set for analyzing vaccination levels among adolescents in the United States and to disseminate this information to interested public health partners. The NIS-Teen provides national and state estimates of vaccination coverage, including new vaccines as they are licensed and recommended for use. It also helps track progress towards the Healthy People 2020 goals.

Survey Sample

The survey assessed the immunization histories of approximately 20,000 adolescents aged 13-17 years in the US. These adolescents were born between January 1999 and February 2005. In Texas, approximately 2000 adolescents were surveyed for the 2017 NIS-Teen.

Vaccines Included

The following vaccine doses routinely recommended for adolescents were measured in the 2017 NIS-Teen.

  • ≥1 Tetanus-diphtheria-pertussis (Tdap) vaccine.
  • ≥1 dose of MenACWY or meningococcal-unknown type vaccine.
  • ≥1 dose of HPV vaccine.1
  • HPV vaccine, Up-to-Date, either three-doses or two-doses.1
    1 Percentage reported among females and males separately.

Vaccination Coverage Levels

NIS-Teen Immunization Coverage Estimates in the U.S. and Texas, 2016-2017
Vaccine U.S. National Average 2017 Texas 2016 Texas 2017 2016-17 Texas Percentage Point Change(+/-)
HPV vaccine, ≥1 dose
65.5%
49.3%
57.8%
8.5%
HPV vaccine, Up-To-Date a
48.6%
32.9% 39.7%
6.8%
MenACWY, ≥1 dose
85.1%
85.5%
85.1%
-0.4%
Tdap, ≥1 dose
88.7%
85.0%
83.2%
-1.8%

a Reporting of HPV vaccine doses received changed for 2016. HPV Up-To-Date is now being used to represent a full series, previously reported as ≥2 and ≥3 doses of HPV.
                                                                                                                                                                                                                                                                                                                                                                               

NIS-Teen Immunization Coverage Estimates, for Tdap and MenACWY by Jurisdiction, 2017



See accessible data table of chart below:

NIS-Teen Immunization Coverage Estimates for Tdap and MenACWY by Jurisdiction, 2017
 Vaccine US Texas  City of Houston  Bexar County  El Paso County  Dallas County  Travis County
 ≥1 Tdap  88.7%  83.2%  87.9%  83.7%   89.6%   77.0%  85.9%
 ≥1 MenACWY  85.1%  85.1%  91.4%   86.0%  89.5%   85.1%  89.1%


NIS-Teen HPV Immunization Coverage Estimates by Sex and Jurisdiction, 2017

See accessible data table of chart below:

NIS-Teen Immunization Coverage Estimates for HPV by Sex and Jurisdiction, 2016