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Technical Information and Data


Item: Overview
Item: BRFSS Datasets (downloads and documentation)
Item: Chronic Disease & the Environment
Item: Summary Data Quality Reports
Item: User's Guide
Item: BRFSS Forms








BRFSS Contents


Item: Prevalence and Trends Data
Item: SMART: City and County Data
Item: BRFSS Maps
Item: Web Enabled Analysis Tool (WEAT)
Item: Chronic Disease Indicators (CDI)
Item: About the BRFSS
Item: BRFSS Datasets (downloads and documentation)
Item: Chronic Disease and the Environment
Item: Questionnaires
Item: FAQs
Item: State Information
Item: Publications and Research
Item: Training
Item: Site Map
Item: Related Links







BRFSS Annual Survey Data


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States conducting surveillance, by year.

Survey Data and Documentation

 

Available Survey Data
2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996
1995 | 1994 | 1993 | 1992 | 1991 | 1990 | 1989 | 1988 | 1987 | 1986 | 1985 | 1984


2002 Survey Data

On This Page: Survey Data Info Data Files SAS Resources File Formats

Survey Data Information

2002 BRFSS Overview
overview_02.rtf

Provides information on the background, design, data collection and processing, statistical and analytical issues.

Icon Representing RTF Files 34K

2002 BRFSS Codebook
codebook_02.rtf

Codebook for the file showing variable name, location, and frequency of values for all reporting areas combined.

Icon Representing RTF Files 7.5MB

Calculated Variables in Data Files
riskfactor_02.rtf

Description of risk factors by data variable name.

Icon Representing RTF Files 575K

Comparability of Data
compare_02.rtf

Comparability of data across reporting areas.

Icon Representing RTF Files 46K

BRFSS Modules Used

Arranged by state or by category.

By State

By Category

Data Quality Report Handbook

Icon Representing PDF Files 830K

Format Assignments for 2002
format_assignments.rtf

Icon Representing RTF Files 968K

Summary Matrix of Calculated Variables in the 2002 Data File
summary_matrix_02.rtf

Icon Representing RTF Files 103K

Web Page


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Data Files

There are 247,964 records for 2002. More information on participation is available in the states conducting surveillance, by year table. The data files are provided in both ASCII and SAS Transport formats. The October 10, 2003 update was to remove the five family planning calculated variables pending further review of the definitions. SMART BRFSS and BRFSS GIS Maps data and documentation are also available for this data year.

2002 BRFSS Data (ASCII)
Data Revised October 10, 2003

This file is in ASCII format. It has a fixed record length of 954 positions.

Icon Representing Zip Archive File 26Mb

2002 BRFSS Data (SAS Transport Format)
CDBRFS02.XPT

This file was exported from SAS V8.2 in the XPT transport format. This format can be imported directly into statistical programs such as SPSS or STATA. Please note: some of the variable labels become truncated in the process of converting to the XPT format so they may be slightly different from what is on the SASOUT.SAS program or those in the SAS dataset.

Icon Representing Zip Archive File 46Mb

Variable Layout

Format information on variable name by column position.

Icon Representing RTF Files 15K

Web Page


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SAS Resources

The following files are included for use with SAS software developed by SAS Institute, Inc. The SAS files are programs that can be read using any text editor. Save SAS files as plain text files.

format02.sas

SAS for Windows program used to generate the 2002 format library.

Icon Representing SAS File 58K

format02.sc7

Format library used with the 2002 BRFSS SAS Data File.

Icon Representing SAS File 348K

sasout02.sas

SAS for Windows program to convert the ASCII file into a SAS dataset.

Icon Representing SAS File 11K

transprt.sas

SAS for Windows program to convert the XPT file into a SAS dataset.

Icon Representing SAS File 3K

formas02.sas

SAS for Windows format assignment statements.

Icon Representing SAS File 7K

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File Formats

A word about file formats: The BRFSS Survey Data and documentation are available in several different file formats. Each available format is described below.
Icon Representing RTF Files Rich Text Format File (RTF). This format contains plain text and allows for basic formatting. Use a word processor to view and edit these files.
Icon Representing ZIP Files Zip Archive File (ZIP). The zip format contains one or more files within it and is compressed to minimize the file's size. Use any zip utility to unzip these archives.
Icon Representing SAS Files SAS Instruction File (SAS). This format contains plain text which can be edited with a text editor. The instructions are intended for statistical analysis software developed by SAS Institute, Inc.
Icon Representing SAS Files SAS Version 8 Catalog File (SAS7BCAT). This format requires the use of statistical analysis software developed by SAS Institute, Inc.
Icon Representing SAS Files SAS Version 8 Datasets File (SAS7BDAT). This format requires the use of statistical analysis software developed by SAS Institute, Inc.
Icon Representing XPT Files SAS Transport File (XPT). This format allows data sets created by the SAS software to be imported directly into other statistical software such as Stata or SPSS.
Icon Representing PDF Files Portable Document Format File (PDF). This format allows formatting that enables full document navigation. You will need Acrobat Reader (a free application) to view and print this document.
Icon Representing TXT Files Plain Text File (TXT). This format contains simple text. Use any text editor to view and edit these files.
Icon Representing comma-separated values files CSV Instruction File (CSV). This format is a comma-delimited text file which can be imported by most analysis software.

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Available Survey Data
2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996
1995 | 1994 | 1993 | 1992 | 1991 | 1990 | 1989 | 1988 | 1987 | 1986 | 1985 | 1984

 

 Using BRFSS Data & Information
Generally, data and materials produced by federal agencies are in the public domain and may be reproduced without permission. Please refer to CDC's Suggested Citation.

 




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Page last reviewed: 03/24/2008
Page last updated: 03/24/2008

United States Department of Health and Human Services
Centers for Disease Control and Prevention
National Center for Chronic Disease Prevention and Health Promotion
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