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Indicator Report - Immunization - Influenza, Adults

Why Is This Important?

Influenza, or flu, is an acute viral infection involving the respiratory tract that can occur in epidemics or pandemics. Influenza can cause a person, especially older persons, to be more susceptible to bacterial pneumonia.

Influenza Vaccination in the Past 12 Months, Utah and U.S. Adults Aged 65+, 1995-2013

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Data Notes

In 2011, the BRFSS changed its methodology from a landline only sample and weighting based on post-stratification to a landline/cell phone sample and raking as the weighting methodology. The 2011-2012 data on this graph are based on the new methodology (landline/cell phone sample; raking).

Due to changes in both sampling and the question format, data for 2011-2012 should be interpreted with caution compared to previous years.

U.S. data are the average for all states and the District of Columbia; they do not include the U.S. territories.

These rates are crude rates, not age-adjusted, given that the Healthy People 2020 Objective is based on crude rates.

Data Sources

Utah Data: Behavioral Risk Factor Surveillance System, Office of Public Health Assessment, Utah Department of Health. U.S. Data: Behavioral Risk Factor Surveillance System (BRFSS), Division of Behavioral Surveillance, CDC Office of Surveillance, Epidemiology, and Laboratory Services.

Other Views


Number of adults who reported receiving an influenza vaccination in the past 12 months.

How We Calculated the Rates

Numerator: Number of survey respondents who reported receiving an influenza vaccination in the past 12 months.
Denominator: Number of survey respondents.

Page Content Updated On 09/23/2014, Published on 10/08/2014
The information provided above is from the Utah Department of Health's Center for Health Data IBIS-PH web site ( The information published on this website may be reproduced without permission. Please use the following citation: "Retrieved Tue, 07 July 2015 3:11:54 from Utah Department of Health, Center for Health Data, Indicator-Based Information System for Public Health Web site:".

Content updated: Wed, 8 Oct 2014 17:21:04 MDT