Youth Risk Behavior Surveillance—United States, 2005

June 9, 2006 / Vol. 55 / No. SS05

MMWR Introduction

This report summarizes results from the national 2005 Youth Risk Behavior Survey (YRBS) and trends during 1991–2005 in selected risk behaviors. Data from the 40 state and 21 local surveys with weighted data for the 2005 YRBSS cycle also are included. Data from the remaining four state and two local surveys with unweighted data are not included in the report. The national survey, 36 weighted state surveys, and 20 weighted local surveys were conducted during spring 2005. One of the weighted state surveys was conducted during fall 2004, and three of the weighted state surveys and one of the weighted local surveys were conducted during fall 2005.