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IID-11.2 Data Details

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IID-11.2 Increase the vaccination coverage level of 2 doses of varicella vaccine for adolescents by age 13 to 15 years (excluding children who have had varicella)

About the Data: National

Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.

Data Source: 
National Immunization Survey-Teen (NIS-Teen); Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases and National Center for Health Statistics (CDC/NCIRD and CDC/NCHS)
Changed Since the Healthy People 2020 Launch: 
Yes
Measure: 
percent
Baseline (Year): 
76.8 (2012)
Target: 
90.0
Target-Setting Method: 
Maintain consistency with national programs, regulations, policies, and laws.
Target-Setting Method Justification: 
High coverage rates for adolescents are important, but many of the adolescent vaccines are relatively recent additions to the ACIP recommendations. Additionally, vaccinating adolescents is more challenging than vaccinating young children (e.g., recommended vaccines for young children often coincide with well-child visits in the first years of life), and adolescents make fewer medical visits on average, compared with younger children. The target for adolescent varicella is lower than kindergarten varicella because approximately two to three cohorts of children will have missed the kindergarten varicella vaccine requirement during the Healthy People 2020 reporting period.
Numerator: 

Number of persons aged 13 to 15 years receiving at least 2 doses of varicella (excluding those who have had varicella)

Denominator: 

Number of persons aged 13 to 15 years (excluding those who have had varicella)

Comparable Healthy People 2010 Objective: 
Adapted from HP2010 objective
Questions Used to Obtain the National Baseline Data: 

    From the 2013 National Immunization Survey-Teen Provider-Immunization History Questionnaire:

    [NUMERATOR:]

    Specify month, day, and year that each vaccine was given, either by the office or another provider, and type of vaccine, as documented in the records.

Data Collection Frequency: 
Annual
Methodology Notes: 

    The National Immunization Survey-Teen (NIS-Teen) collects vaccination information for adolescents aged 13–17 years in the 50 states, the District of Columbia, selected areas, and the U.S. Virgin Islands, using a random-digit-dialed sample of landline and, starting in 2011, cellular telephone numbers. Parent/guardian respondents provide vaccination and sociodemographic information on adolescents in their care. After the parent/guardian grants permission to contact their child's vaccination provider, a questionnaire is mailed to that provider to obtain a vaccination history from the medical record. Data for this measure are restricted to adolescents aged 13–15 and weighted to represent the population of adolescents age 13–15, with adjustments for households with multiple telephone lines and mixed telephone use (landline and cellular), household nonresponse, and exclusion of households without telephone service.

    In 2005, the Advisory Committee on Immunization Practices (ACIP) recommended 1) a routine 2-dose varicella vaccination program for children, with the first dose administered at age 12–15 months and the second dose at age 4–6 years; and 2) a second dose catch-up varicella vaccination for children, adolescents, and adults who previously had received 1 dose.

    This measure tracks the proportion of adolescents aged 13–15 years receiving at least 2 doses of the varicella vaccine among those who have not had varicella disease.

Changes Between HP2010 and HP2020: 
This objective differs from Healthy People 2010 objective 14-27d in that the number of doses of varicella was revised from "1 or more" to "at least 2 doses."

About the Data: State

Description of the data source, numerator, denominator, survey questions, and other relevant details about the state-level data.

Data Source: 
National Immunization Survey-Teen (NIS-Teen); Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases and National Center for Health Statistics (CDC/NCIRD and CDC/NCHS)
Measure: 
percent
Numerator: 

Number of persons aged 13 to 15 years receiving at least 2 doses of varicella (excluding those who have had varicella)

Denominator: 

Number of persons aged 13 to 15 years (excluding those who have had varicella)

Questions Used to Obtain the State Data: 

      From the 2013 National Immunization Survey-Teen Provider-Immunization History Questionnaire:

      [NUMERATOR:]

      Specify month, day, and year that each vaccine was given, either by the office or another provider, and type of vaccine, as documented in the records.

Data Collection Frequency: 
Annual
Methodology Notes: 

      The National Immunization Survey-Teen (NIS-Teen) collects vaccination information for adolescents aged 13–17 years in the 50 states, the District of Columbia, selected areas, and the U.S. Virgin Islands, using a random-digit-dialed sample of landline and, starting in 2011, cellular telephone numbers. Parent/guardian respondents provide vaccination and sociodemographic information on adolescents in their care. After the parent/guardian grants permission to contact their child's vaccination provider, a questionnaire is mailed to that provider to obtain a vaccination history from the medical record. Data for this measure are restricted to adolescents aged 13–15 and weighted to represent the population of adolescents age 13–15, with adjustments for households with multiple telephone lines and mixed telephone use (landline and cellular), household nonresponse, and exclusion of households without telephone service.

      In 2005, the Advisory Committee on Immunization Practices (ACIP) recommended 1) a routine 2-dose varicella vaccination program for children, with the first dose administered at age 12–15 months and the second dose at age 4–6 years; and 2) a second dose catch-up varicella vaccination for children, adolescents, and adults who previously had received 1 dose.

      This measure tracks the proportion of adolescents aged 13–15 years receiving at least 2 doses of the varicella vaccine among those who have not had varicella disease.

Revision History

Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.

Description of Changes Since the Healthy People 2020 Launch: 
In 2014, the data source name was revised to the “National Immunization Survey (NIS) – Teen” to distinguish this survey from the “National Immunization Survey (NIS),” which samples children between the ages of 19 and 35 months. Neither the data nor the target were revised. In 2015, the baseline year was revised from 2008 to 2012 due to expanding the sampling frame from landline phones only to a dual frame sample including landline and cell phones. The baseline statement was changed from " 36.7 percent of adolescents aged 13 to 15 years had received at least 2 doses of varicella vaccine (excluding adolescents who have had varicella) in 2008 " to " 76.8 percent of adolescents aged 13 to 15 years had received at least 2 doses of varicella vaccine (excluding adolescents who have had varicella) in 2012." The target remains unchanged.

References

Additional resources about the objective

  1. Datasets for the National Immunization Survey - Teen [online]. Atlanta (GA): National Center for Immunization and Respiratory Diseases. c2013 – [cited 2013 June 6].