Gay Jennifer L, Robb Sara W, Benson Kelsey M, White Alice
Dept of Health Promotion and Behavior, University of Georgia, Athens, GA.
J Phys Act Health. 2016 Feb;13(2):121-30. doi: 10.1123/jpah.2015-0042.
The Social Vulnerability Index (SVI), a publicly available dataset, is used in emergency preparedness to identify communities in greatest need of resources. The SVI includes multiple socioeconomic, demographic, and geographic indicators that also are associated with physical fitness and physical activity. This study examined the utility of using the SVI to explain variation in youth fitness, including aerobic capacity and body mass index.
FITNESSGRAM data from 2,126 Georgia schools were matched at the census tract level with SVI themes of socioeconomic, household composition, minority status and language, and housing and transportation. Multivariate multiple regression models were used to test whether SVI factors explained fitness outcomes, controlling for grade level (ie, elementary, middle, high school) and stratified by gender.
SVI themes explained the most variation in aerobic fitness and body mass index for both boys and girls (R2 values 11.5% to 26.6%). Socioeconomic, Minority Status and Language, and Housing and Transportation themes were salient predictors of fitness outcomes.
Youth fitness in Georgia was related to socioeconomic, demographic, and geographic themes. The SVI may be a useful needs assessment tool for health officials and researchers examining multilevel influences on health behaviors or identifying communities for prevention efforts.
社会脆弱性指数（SVI）是一个公开可用的数据集，用于应急准备工作，以识别最需要资源的社区。SVI包含多个社会经济、人口和地理指标，这些指标也与身体健康和体育活动相关。本研究探讨了使用SVI来解释青少年健康状况差异的效用，包括有氧能力和体重指数。
来自佐治亚州2126所学校的FITNESSGRAM数据在人口普查区层面与社会经济、家庭构成、少数族裔地位和语言以及住房和交通等SVI主题进行匹配。使用多元多重回归模型来检验SVI因素是否能解释健康状况结果，并控制年级水平（即小学、初中、高中）并按性别分层。
SVI主题解释了男孩和女孩有氧适能和体重指数的最大差异（R2值为11.5%至26.6%）。社会经济、少数族裔地位和语言以及住房和交通主题是健康状况结果的显著预测因素。
佐治亚州青少年的健康状况与社会经济、人口和地理主题相关。SVI可能是卫生官员和研究人员的一个有用的需求评估工具，用于研究对健康行为的多层次影响或确定预防工作的社区。
