一份关于学童健康习惯和心血管疾病风险因素知识的问卷的构建与验证

Construction and validation of a questionnaire on the knowledge of healthy habits and risk factors for cardiovascular disease in schoolchildren.

作者信息

Cecchetto Fátima H, Pellanda Lucia C

机构信息

Instituto de Cardiologia do Rio Grande do Sul, Porto Alegre, RS, Brazil.

出版信息

J Pediatr (Rio J). 2014 Jul-Aug;90(4):415-9. doi: 10.1016/j.jped.2013.12.010. Epub 2014 Mar 21.

DOI:10.1016/j.jped.2013.12.010

PMID:24657472

Abstract

OBJECTIVES

To develop and analyze the reliability and validity of a questionnaire on the knowledge of healthy habits and risk factors for cardiovascular disease (CARDIOKID) to be used in schoolchildren.

METHODS

The study included 145 children aged 7 to 11 years. The measured factors were the knowledge of healthy habits and risk factors for cardiovascular disease. Cronbach's alpha and intra-class correlation coefficient (ICC) were used to verify reliability, and exploratory factor analysis was used to assess the validity of the questionnaire.

RESULTS

The sample consisted of 60% females and 40% males. In factorial analysis, the Kaiser-Meyer-Olkin (KMO) test result was measures of sampling adequacy (MSA)=0.81 and Bartlett's test of sphericity was X(2)=(66)=458.64 (p<0.001). In the factorial analysis with varimax rotation, two dimensions were defined. The "healthy habits" dimension was composed of five factors (ICC=0.87 and α=0.93) and the "cardiovascular risk factors" dimension was composed of seven factors (ICC=0.83 and α=0.91). In the individual factor analysis, Cronbach's alphas were between 0.93 and 0.91. Total variance was 46.87%. There were no significant differences between test and retest applications.

CONCLUSION

The questionnaire presented satisfactory validity and reliability (internal consistency and reproducibility), allowing for its use in children.

摘要

目的

开发并分析一份用于学童的关于健康习惯和心血管疾病风险因素的问卷（CARDIOKID）的信效度。

方法

该研究纳入了145名7至11岁的儿童。测量的因素为健康习惯和心血管疾病风险因素的知识。采用克朗巴哈系数和组内相关系数（ICC）来验证信度，并采用探索性因素分析来评估问卷的效度。

结果

样本中60%为女性，40%为男性。在因素分析中，Kaiser-Meyer-Olkin（KMO）检验结果为抽样充足性度量（MSA）=0.81，巴特利特球形度检验为X(2)=(66)=458.64（p<0.001）。在采用方差最大化旋转的因素分析中，定义了两个维度。“健康习惯”维度由五个因素组成（ICC=0.87，α=0.93），“心血管风险因素”维度由七个因素组成（ICC=0.83，α=0.91）。在单个因素分析中，克朗巴哈系数在0.93至0.91之间。总方差为46.87%。重测应用之间无显著差异。