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Influenza Immunization among Adults Aged 65 and Over by County, New Jersey, 2018-2021

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Influenza Immunization among Adults Aged 65 and Over by County, New Jersey, 2018-2021

Why Is This Important?

Recommended immunizations for adults aged 65 years and older include a yearly immunization against influenza (flu) and a one-time immunization against pneumococcal disease. Most of the deaths and serious illnesses caused by influenza and pneumococcal disease occur in older adults and others at increased risk for complications of these diseases because of other risk factors or medical conditions. Barriers to adult immunization include not knowing immunizations are needed, misconceptions about vaccines, and lack of recommendations from health care providers.


Percentage of adults aged 65+ who report receiving an influenza vaccination in the past 12 months. The survey question for this measure is "During the past 12 months, have you had either a seasonal flu shot or a flu vaccine that was sprayed into your nose?"

Data Notes

2019 data is not included in the average estimated prevalence. No data were collected in 2019.

Data Source

Behavioral Risk Factor Survey, Center for Health Statistics, New Jersey Department of Health

How the Measure is Calculated

  • Numerator:

    Number of survey respondents aged 65+ who report receiving an influenza vaccination in the past 12 months.
  • Denominator:

    Number of survey respondents aged 65+.

Data Issues

Data from the New Jersey Behavioral Risk Factor Survey are intended to be representative of all non-institutionalized adult residents of New Jersey. Due to resource issues, however, adults with limited personal access to phone service or limited command of either English or Spanish are not represented. As with all surveys, also, some error results from nonresponse (e.g., refusal to participate in the survey or to answer specific questions), and faulty measurement (e.g., responses affected by social desirability or recall error). Data collection procedures intended to minimize such errors include the use of strict calling protocols, good questionnaire design, standardization of interviewer behavior, interviewer training, and frequent, on-site interviewer monitoring and supervision. Statistical weighting procedures are also used to minimize the potential impact of disproportionate representation of demographic subgroups defined in terms of age, sex, race, ethnicity, education level, marital status, home ownership, and county of residence. (See also [[a href="query/BRFSSQueryTechNotes.html" Behavioral Risk Factor Survey Data Description and Technical Notes]].)

Related Health Objectives and Indicators

  • Health Initiative: HNJ2020

    Healthy NJ 2020 Objective IMM-4

    NJ Target: Increase the percentage of non-institutionalized adults aged 65 years and older who are vaccinated annually against seasonal influenza to 67.4 percent for the total population, 43.6% for Blacks, 53.9% for Hispanics, and 72.1% for Whites by 2020

Related Health Care System Factors Indicators:

Health Topic Pages Related to: Immunization - Influenza, Adults

Indicator Data Last Updated On 10/16/2023, Published on 06/05/2024
Communicable Disease Service, Infectious and Zoonotic Disease Program, New Jersey Department of Health, Trenton, NJ, 08625 (