BRFSS 2004 Survey Data and Documentation

2004 Survey Data Information

2004 BRFSS Overview Cdc-pdf[PDF – 51 KB]
Provides information on the background, design, data collection and processing, statistical, and analytical issues.

BRFSS Codebook Cdc-pdf[PDF – 2 MB]
Codebook for the file showing variable name, location, and frequency of values for all reporting areas combined.

Calculated Variables in Data Files Cdc-pdf[PDF – 266 KB]

2004 Summary Data Quality Report Cdc-pdf[PDF – 1 MB]

Comparability of Data Cdc-pdf[PDF – 59 KB]
Comparability of data across reporting areas.

BRFSS Modules Used by State
BRFSS Modules Used by Category

Arranged by state or by category for the combined landline and cell phone data set.

Summary Matrix of Calculated Variables (CV) in the 2004 Data File Cdc-pdf[PDF – 86 KB]

Data Files

There are 303,822 records for 2004. More information on participation is available in the States Conducting Surveillance by Year table. The data files are provided in ASCII and SAS Transport formats. The September 22 update corrected miscoded values for POORHLTH in data from Delaware. The November 9 update corrected eight duplicate SEQNO/PSU values which were renumbered in data from Puerto Rico. SMART BRFSS and BRFSS GIS Maps data and documentation are also available for this data year.

2004 BRFSS Data (ASCII) Cdc-zip[ZIP – 27 MB]
Data updated November 9, 2005
This file is in ASCII format. It has a fixed record length of 991 positions.

Variable Layout Cdc-pdf[PDF – 73 KB]
Format information on variable name by column position.

2004 BRFSS Data (SAS Transport Format) Cdc-zip[ZIP – 43 MB]
Data updated November 9, 2005
This file was exported from SAS V8.2 in the XPT transport format. This file contains 293 variables. This format can be imported into SPSS or STATA. Please note: some of the variable labels get truncated in the process of converting to the XPT format so they may be slightly different from what is on the SASOUT04.SAS program.

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.

Format04.sas Cdc-sas[SAS – 128 KB]
SAS for Windows program used to generate the 2004 format library.

format04 [SAS7BCAT – 386 KB]
Format library used with the 2004 BRFSS SAS Data File.

SASOUT04.SAS [SAS – 28 KB]
SAS for Windows program to convert the ASCII file into a SAS dataset.

transprt.sas Cdc-sas[SAS – 3 KB]
SAS for Windows program to convert the XPT (SAS Transport) file into a SAS dataset.

Formas04.sas Cdc-sas[SAS – 9 KB]
SAS for Windows format assignment statements.