Youth Risk Behavior Surveillance System (YRBSS)

Users can download data sets and fact sheets regarding youth risk behaviors such as, physical activity, smoking and drug use, and sexual behaviors. Background The Youth Risk Behavior Surveillance System (YRBSS) is a national school-based survey conducted by the Centers for Disease Control and Prevention (CDC), as well as state, territorial, tribal and local surveys conducted by other agencies. YRBSS monitors the health risk behaviors and prevalence rates of obesity and asthma among youth and young adults. Information includes: tobacco, drug and alcohol use, sexual behaviors, dietary behaviors, and physical inactivity. Becaus e not every state participates, data on each individual state is not available. User Functionality Fact sheets are available by sex/ gender and racial/ ethnic group, state vs. national comparisons, and on specific behaviors that are ascertained from the more local surveys. Comprehensive results and publications are also available, and data files and the survey instruments can be downloaded into SPSS, SAS or Access. Data is available on the national, state, county and city levels. Data Notes Participants are students in grades 9-12. YRBSS sta rted in 1991, so data is available for every year since then and trend information is offered. The most recent data is from 2009,and the site does not specify when more recent data will become available. Information on the Methods and a Data User’s Manual are helpful tools in understanding the data.

用户可下载涵盖青少年危险行为（如身体活动、吸烟、药物使用及性行为）的数据集与情况说明书。
背景
青少年危险行为监测系统（Youth Risk Behavior Surveillance System, YRBSS）是由美国疾病控制与预防中心（Centers for Disease Control and Prevention, CDC）开展的全国性校内调查，同时涵盖其他机构实施的州级、领地级、部落级及地方级同类调查。YRBSS用于监测青少年与青年群体的健康危险行为、肥胖及哮喘的患病率。相关调查信息包括：烟草、药物与酒精使用情况，性行为、饮食行为及身体活动不足状况。由于并非所有州均参与本项目，因此无法提供单一个州的个体数据。
用户功能
可按性别/性别群体、种族/族裔群体、州与全国对比维度，以及针对地方级调查所确定的特定行为获取对应情况说明书。平台同时提供综合研究结果与官方出版物，数据文件及调查工具可下载为SPSS、SAS或Access格式。数据覆盖全国、州、县及城市四个层级。
数据说明
本次调查的对象为9至12年级的在校学生。YRBSS项目始于1991年，因此自1991年起每年均可获取对应年份的数据，并提供趋势分析信息。当前最新可用数据为2009年，网站未提及更近期数据的更新计划。关于调查方法与数据用户手册的相关资料，可帮助使用者理解本数据集。