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Data and Confidence Limits for Prevalence of Arthritis, Utah and U.S., 2000-2013

BRFSS Utah vs. U.S. Year Age-adjusted Percentage of Adults Lower Limit Upper Limit
Record Count: 21
UT Old Methodology 2000 23.4% 21.6% 25.3%
UT Old Methodology 2001 21.7% 20.9% 23.3%
UT Old Methodology 2002 26.2% 24.6% 27.8%
UT Old Methodology 2003 25.5% 23.9% 27.2%
UT Old Methodology 2005 25.8% 24.5% 27.2%
UT Old Methodology 2007 24.7% 20.5% 24.2%
UT Old Methodology 2009 24.0% 23.1% 24.9%
US Old Methodology 2000 22.9% 22.6% 23.3%
US Old Methodology 2001 22.7% 22.4% 23.0%
US Old Methodology 2002 26.6% 26.2% 27.0%
US Old Methodology 2003 26.7% 26.4% 27.0%
US Old Methodology 2005 28.6% 28.0% 29.2%
US Old Methodology 2007 26.1% 25.9% 26.4%
US Old Methodology 2009 21.4% 21.1% 21.8%
UT New Methodology 2009 24.4% 23.5% 25.4%
UT New Methodology 2011 21.8% 21.0% 22.6%
UT New Methodology 2012 21.8% 21.0% 22.6%
UT New Methodology 2013 21.0% 21.0% 20.3%
US New Methodology 2011 23.4% 23.2% 23.6%
US New Methodology 2012 23.9% 23.7% 24.1%
US New Methodology 2013 23.3% 23.1% 23.5%

Data Notes

Doctor-diagnosed arthritis was self-reported in the BRFSS and was not confirmed by a health-care provider; however, such self-reports have been shown to be acceptable for surveillance purposes.   `
Age-adjusted to the U.S. 2000 standard population for comparison purposes. Age-adjusted rates are based on eight age groups: 18-24, 25-34, 35-44, 55-64, 65-74, 75-84, and 85+.

Note: At the time of this update, the BRFSS U.S. dataset did not include an age variable but did include five age categories up to age 80+ (vs. the typical weighting scheme that includes 85+). Comparisons with both weighting schemes were compared using Utah data, and the difference was about 1/100 of a percentage point.

In 2000 and 2001, the BRFSS questions were worded, "Have you ever been told by a doctor that you have arthritis?" In 2002, the wording was changed to "Have you ever been told by a doctor or other health professional that you have some form of arthritis, rheumatoid arthritis, gout, lupus, or fibromyalgia?"

Beginning in 2011, BRFSS data include both landline and cell phone respondent data along with a new weighting methodology called iterative proportional fitting, or raking. This methodology utilizes additional demographic information (such as education, race, and marital status) in the weighting procedure. Both of these methodology changes were implemented to account for an increased number of U.S. households without landline phones and an under-representation of certain demographic groups that were not well-represented in the sample. More details about these changes can be found at: http://health.utah.gov/opha/publications/brfss/Raking/Raking%20impact%202011.pdf.

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


Definition

Percentage of persons who have ever been told by a doctor or other health professional that they have some form of arthritis, rheumatoid arthritis, gout, lupus, or fibromyalgia.

How We Calculated the Rates

Numerator: Includes survey respondents ages 18 and older who reported being told by a doctor or other health professional that they had some form of arthritis, rheumatoid arthritis, gout, lupus, or fibromyalgia. Excludes those with missing, don't know, and refused answers.
Denominator: Includes survey respondents ages 18 and older. Exlcudes those with missing, don't know, or refused answers.

Date Indicator Content Last Updated: 10/21/2014


The information provided above is from the Utah Department of Health's Center for Health Data IBIS-PH web site (http://ibis.health.utah.gov). The information published on this website may be reproduced without permission. Please use the following citation: "Retrieved Sat, 20 December 2014 15:11:04 from Utah Department of Health, Center for Health Data, Indicator-Based Information System for Public Health Web site: http://ibis.health.utah.gov".

Content updated: Tue, 4 Nov 2014 13:27:54 MST