儿童身体活动问卷的建立和验证

Development and validation of children physical activity questionnaire

目的建立中国6~17岁儿童身体活动问卷,用以测量儿童身体活动。方法采用系统综述、专家评议和预试验的方法,研制出以一周为时间周期的"中国6~17岁儿童身体活动问卷(6-to 17-year-old Chinese children physical activity questionnaire,CCPAQ)"。在中国南北方各选取1个调查点共抽取120名6~17岁儿童,使用SAS 9.4软件和Mplus 8.0软件进行因子分析,对CCPAQ测量身体活动方式和类型进行验证。结果共纳入119名研究对象,分别对33种方式和7种类型的活动时间进行探索性因子分析,提取4个和1个公因子。经验证性因子分析,最终拟合二阶四因子模型和一阶七因子模型,模型评价指标分别为χ^(2)/df=1.41和χ^(2)/df=1.61,表明模型拟合可接受。结论建立的CCPAQ可有效测量中国6~17岁儿童身体活动类型和方式。

OBJECTIVE To develop the physical activity questionnaire for Chinese children aged 6-17 years old,in order to evaluate the children’s physical activity.METHODS After systematic review,expert review and preliminary investigation,the"6-to 17-year-old Chinese children physical activity questionnaire(CCPAQ)"was established to measure the weekly physical activity.Based on the sample size estimation and inclusion and exclusion criteria,120 children aged 6-17 were selected from one survey site in the south and north of China.SAS 9.4 software and Mplus 8.0 software were used for factor analyses to validate the modes and types of physical activity measured by CCPAQ.RESULTS This study included 119 subjects in total.Exploratory factor analyses were used to assess the 33 modes and 7 types of physical activity time and extract four and one common factor,respectively.Confirmatory factor analysis fitted a second-order 4 factors model and first-order 7 factors model.The evaluation index of the two models wereχ^(2)/df=1.41 andχ^(2)/df=1.61,respectively,showing that the models fitting were acceptable.CONCLUSION CCPAQ established in this study can effectively measure the physical activity of Chinese children aged 6-17 years.