County-Level Behavioral Risk Factor Prevalence Estimates 2002-2010

2002-2010 county-level prevalence data for behavioral risk factors from the CDC's Behavioral Risk Factor Surveillance System (BRFSS). The dataset includes estimates for selected metropolitan area counties with at least 500 survey respondents, compiled by the Centers for Disease Control and Prevention (CDC). It covers topics like modifiable risk factors for chronic diseases and leading causes of death.

Use Cases

• Analyze geographic disparities in health risks by comparing `Data_value` and `Confidence_limit_Low/High` across different `Locationdesc` counties.
• Track trends over time for specific `Question` responses, such as smoking or obesity, using the `Year` and `Response` columns.
• Model the relationship between `Sample_Size` and estimate precision (`Confidence_limit_Low/High`) for different `Topic` categories.
• Map risk factor prevalence using `GeoLocation` fields to visualize public health challenges in specific metropolitan areas.

Strengths

• Data spans 9 years (2002-2010) providing a multi-year trend analysis window.
• Includes confidence intervals (`Confidence_limit_Low`, `Confidence_limit_High`) for each prevalence estimate, quantifying uncertainty.
• Covers multiple `Topic` categories and specific `Question` items within the BRFSS survey.

Limitations

• Limited to landline telephone survey respondents only, introducing potential coverage bias.
• Only includes counties with 500 or more respondents, excluding data from less populated areas.
• Data is not current, covering years up to 2010, which may limit relevance to present-day conditions.

Provenance

Source

Centers for Disease Control and Prevention (CDC) Behavioral Risk Factor Surveillance System (BRFSS).

Collection Method

State-based, continuous telephone surveillance system collecting self-reported data on health-related behaviors.

Time Range

2002-2010

Freshness

Updated annually, but the described version covers data through 2010.

Geography

Selected metropolitan area counties within the United States.