CDC - YRBSS - Data Files & Methods - Adolescent and School Health

CDC - YRBSS - Data Files & Methods - Adolescent and School Health

Data Files & Methods

National Youth Risk Behavior Survey (YRBS) data are available in two file formats: Access® and ASCII. The Access and ASCII data can be downloaded and used as is. Additionally, SAS® and SPSS® programs are provided to convert the ASCII data into SAS and SPSS datasets for use in those packages. See How to Use YRBS Data Files for more information.

See the YRBS Data FAQ and the YRBS Data Request Form for information on getting state, district, territory, and tribal government data.

For additional information on SAS and SPSS (and Stata® and Epi Info™ as well), see Software for Analysis of YRBS Data  [pdf 429K].

National High School YRBS Data Files 1991–2013
Year	Documentation [pdf 100K-1M]	File Format
		ASCII [dat 3M-5M] (Using ASCII Files)	SAS® [sas 2K-15K] (Using SAS Files)	SPSS® [sps 2K-25K] (Using SPSS Files)	Access® [zip 2M-6M] (Using Access Files)
2013	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
2011	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
2009	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
2007	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
2005	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
2003	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
2001	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
1999	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
1997	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
1995	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
1993	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
1991	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
National Alternative High School YRBS Data Files
1998	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File
National College YRBS Data Files
1995	User’s Manual	ASCII Data	Format Program Input Program	SPSS Syntax	Access File

How to Use YRBSS Data Files

Using ASCII Files:

1. Save the ASCII data file to a folder on your computer.
2. Specify column locations for each variable as needed by the software you are using.

Note: How to use the ASCII data varies from one software package to another. Column positions for each variable usually have to be specified. Column positions for each variable can be found in the documentation for each year’s data. Consult your software documentation for more information.

Using SAS Files:

1. Save the SAS Format Program, SAS Input Program, and the ASCII data files to a folder on your computer.
2. Open the SAS Format Program in SAS and edit it according to the instructions included in the comments in the program.
3. Run the program. This will create a permanent format library in the folder specified in the SAS program.
4. Open the SAS Input Program in SAS and edit it according to the instructions included in the comments in the program.
5. Run the program. This will read the ASCII data file and convert it into a permanent SAS dataset for the particular year in the folder specified in the SAS program.

Note: Each year of YRBSS data should go in its own folder because each year has its own format library. Format libraries are not comparable across years. See “How do I use the SAS format library?” in the YRBS FAQs for more information.

Using SPSS Files:

1. Save the SPSS syntax file and the ASCII data files to a folder on your computer.
2. Open the SPSS syntax file in SPSS and edit it according to the instructions included in the comments in the file.
3. Run the syntax file. This will read the ASCII data file and convert it into a permanent SPSS data file that includes labels and formats.

Using Access Files:

1. Save the Access file to a folder on your computer.
2. Uncompress the Access file.

Note: The file is stored in compressed form to improve download time; it will need to be uncompressed before it can be used. See File Formats Help for more information on uncompressing the file.

Methods

Methodology of the Youth Risk Behavior Surveillance System  [pdf 420K]
MMWR 2013;62(RR-01):1–20; also available as HTML.

Software for Analysis of YRBS Data  [pdf 430K]
A review of software packages suitable for analyzing YRBS data and guidance on how to use them

Combining YRBS Data Across Years and Sites  [pdf 130K]
Guidance and best practices for combining data from multiple Youth Risk Behavior Surveys (YRBSs)

Conducting Trend Analyses of YRBS Data  [pdf 274K]
Guidance and methods for conducting trend analyses of Youth Risk Behavior Survey (YRBS)

Interpretation of YRBS Trend Data  [pdf 51K]
Guidance on interpreting YRBS trend data analyses

A Guide to Conducting Your Own Youth Risk Behavior Survey  [pdf 132K]
Information useful to communities and groups that plan to conduct their own YRBS survey

Frequently Asked Questions
Answers to common questions asked about the YRBSS, including results, questionnaire content, validity and reliability, methods, and using the data files

 

See Youth Risk Behavior Surveillance System Methodology for additional articles related to YRBSS methods.