Overweight is defined as having a body mass index (BMI) that is between 25.0 to <30. Obesity is defined as a BMI of 30 or more.
BMI is calculated by dividing weight in kilograms by the square of height in meters.^1^
1. CDC [https://www.cdc.gov/nccdphp/dnpao/data-trends-maps/help/npao_dtm/definitions.html]. [[br]]
[[br]]The U.S./Utah graphs includes estimates using old and new methodologies. 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. Raking accounts for variables such as income, education, marital status, and home ownership during weighting and has the potential to more accurately reflect the population distribution.
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In 2016, Utah BRFSS modified its methodology for age adjustment for increased precision. With this change Utah is consistent with both the U.S. and other states using IBIS. Data has been updated from 2011 onward in all chart views to reflect this change.
[[br]] [[br]]Age-adjusted to U.S. 2000 standard population.
Data Sources
Utah Department of Health and Human Services Behavioral Risk Factor Surveillance System (BRFSS) [https://ibis.utah.gov/ibisph-view/query/selection/brfss/BRFSSSelection.html]
Behavioral Risk Factor Surveillance System Survey Data, US Department of Health and Human Services Centers for Disease Control and Prevention (CDC).
Overweight is defined as having a body mass index (BMI) that is between 25.0 to <30. Obesity is defined as a BMI of 30 or more.
BMI is calculated by dividing weight in kilograms by the square of height in meters.^1^[[br]]
[[br]]
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1. CDC [https://www.cdc.gov/nccdphp/dnpao/data-trends-maps/help/npao_dtm/definitions.html Defining Adult Overweight and Obesity]
How We Calculated the Rates
Numerator:
The number of respondents age 18 years and older who have a body mass index (BMI) greater than or equal to 25.0 kg/m^2^ calculated from self-reported weight and height.
Denominator:
The number of respondents age 18 years and older for whom BMI can be calculated from their self-reported weight and height (excludes unknowns or refusals for weight and height).
Date Indicator Content Last Updated: 10/18/2024
The information provided above is from the Utah Department of Health and Human Services
IBIS-PH website (https://ibis.utah.gov/ibisph-view/). The information published
on this website may be reproduced without permission. Please use the following citation:
"
Retrieved
Sun, 18 January 2026 18:40:28
from Utah Department of Health and Human Services, Indicator-Based Information
System for Public Health website: https://ibis.utah.gov/ibisph-view/
".