BRFSS 1998 Survey Data and Documentation

1998 Survey Data Information

1998 BRFSS Overview [PDF – 48 KB]
Provides information on the background, design, data collection and processing, statistical, and analytical issues.

1998 BRFSS Codebook [PDF – 603 KB]
Codebook for the file showing variable name, location, and frequency of values for all reporting areas combined.

Calculated Variables in Data Files [PDF – 50 KB]

Summary Sample Design [PDF – 16 KB]
1998 summary sample design and sample size information with target sample sizes.

1998 Summary Data Quality Report [PDF – 643 KB]

Comparability of Data [PDF – 25 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.

BRFSS Questionnaire Content Plan [PDF – 25 KB]
Subject summary of core questionnaire content.

FIPS Codes [PDF – 491 KB]
State and county FIPS codes.

Estimated Telephone Coverage [PDF – 66 KB]
Estimated telephone coverage.

Data Files

There are 149,342 records for 1998. 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.

1998 BRFSS Data (ASCII) [ZIP – 12 MB]
This file is in ASCII format. It has a fixed record length of 500 positions.

Variable Layout [PDF – 51 KB]
Format information on variable name by column position.

1998 BRFSS Data (SAS Transport Format) [ZIP – 22 MB]
This file was exported from SAS V8.2 in the XPT transport format. This file contains 326 variables. This format can be imported into SPSS or STATA. Please note: some of the variable labels are truncated in the process of converting to the XPT format so they may be slightly different from what is on the SASOUT98.SAS program.

SAS Resources

The following files are included for use with SAS software developed by SAS Institute Inc. The .sc2 file is a SAS proprietary format library to be used in conjunction with the data file produced from Save SAS files as plain text files.

Format98.sc2 [SC2 – 213 KB]
Format library used with the 1998 BRFSS SAS Data File [SAS – 50 KB]
SAS for Windows program used to generate the 1998 format library [SAS – 76 KB]
SAS for Windows program to convert the ASCII file into a SAS dataset. [SAS – 1 KB]
A sample SAS program that calls SUDAAN to produce prevalence estimates for one variable. [SAS – 12 KB]
An example of the SUDAAN code for obtaining appropriate statistics and called by the sample SAS program. [SAS – 3 KB]
SAS for Windows program to convert the XPT (SAS Transport) file into a SAS dataset.