典型相关分析在中国青少年健康行为影响因素探讨中的应用

Multi-factor Influences on Chinese Youth Health Behaviors:Canonical Correlation Analysis on Data from Global School-based Student Health Survey

目的运用典型相关方法从多维度探讨几组中国青少年健康行为之间的相互关系。方法数据来自2003年全球学校学生健康状况调查——中国区(GSHS)。健康行为变量分为四组:健康行为、心理、其他个人行为和环境行为组。典型相关分析以SPSS13.0完成。结果不良心理状态主要由高水平的孤独、焦虑、有自杀想法、有自杀计划和抑郁来反映,健康行为主要由少吸烟、少饮酒、较少静坐行为和经常吃早餐来反映,其他不健康个人行为包括较少安全带使用、参与斗殴和旷课,而不良环境行为由较多被欺负、受到严重伤害和他人在面前吸烟决定。处于不良心理状态个体发生不健康行为的可能性越大,而暴露于不良环境行为越多者,其心理风险也越大。结论行为是一种多元变量,没有一个或一组心理或其他行为变量能够单独影响和解释中国青少年的健康行为。在进行这类因素的关联分析时,可更多地考虑应用典型相关分析方法。

Objective To explore interrelationships among conceptually related groups of health behaviors in Chinese youth using the multivariate technique of canonical correlation to provide a multidimensional view of the component variables. Methods Responses on health behaviors from the 2003 Global School-Based Student Health Survey（GSHS） in China were grouped into four conceptual categories-health risks, psychological, behavior, and environmental and analyzed through canonical correlation using SPSS 13.0. Results Negative psychological state is reflected by high level incidence of being lonely, being worried, being depressed, considering suicide, and planning how to attempt suicide, while healthy behavior by low tobacco use, alcohol use, sedentary behavior and often eating breakfast. Other risk behaviors within the control of the individual include skipping school, being in a physical fight, and not using seat belts. And unhealthy environmental exposures include tobacco exposure, being bullied and suffering a serious injury. One with negative psychological states is more likely to have unhealthy behaviors, while one with more unhealthy environmental exposures has greater negative psychological risks. Conclusion Canonical correlation of various risk categories confirms that behavior is multi-factorial and results from the small contributions of many different sources. No single set of feelings or other behaviors explains the variability in risk behaviors among Chinese youth.