Evaluation of the measurement properties of the Brazilian version of two quality‐of‐life questionnaires in food allergy – for children and their parents

Jornal de Pediatria (Vers?o em Português) Pub Date : 2020-09-01 DOI:10.1016/j.jpedp.2019.04.013

Raquel Bicudo Mendonça , Dirceu Solé , Audrey DunnGalvin , Claudio Arnaldo Len , Roseli Oselka Saccardo Sarni

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Abstract

Objective

To evaluate the psychometric properties of the Brazilian version of health‐related quality‐of‐life questionnaires of children with food allergy and their parents.

Methods

The translation and cultural adaptation processes were previously performed, according to the method proposed by the World Health Organization. After this stage, the questionnaires were applied to 201 parents of children under 6 years of age with food allergy. The assessment of the psychometric properties included: evaluation of the internal consistency by Cronbach's alpha coefficient; of the reproducibility by the intraclass correlation coefficient between test and retest; and of the construct, using Spearman's correlation coefficient, comparing the obtained scores with those of generic questionnaires that evaluate health‐related quality of life.

Results

The means of the obtained scores were 2.44 and 3.35, for the children and their parents, respectively. Cronbach's alpha coefficients were 0.85 and 0.91, respectively, which showed good internal consistency of the tools. The intraclass correlation coefficients between test and retest were 0.87 and 0.84 for children and their parents, respectively, showing good reproducibility for both questionnaires. The correlation between the specific and the generic questionnaires was significant (−0.27 for the children, −0.64 for their parents, p < 0.05).

Conclusions

The specific questionnaires to evaluate the health‐related quality of life of children with food allergy and of their parents were satisfactorily validated to be used in Brazil.

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对巴西版儿童及其父母食物过敏两份生活质量问卷的测量特性进行评估

目的评价巴西版食物过敏儿童及其父母健康相关生活质量问卷的心理测量特征。方法根据世界卫生组织提出的方法进行翻译和文化适应过程。在此阶段之后，对201名6岁以下食物过敏儿童的父母进行问卷调查。心理测量性质的评价包括:用Cronbach's alpha系数评价内部一致性;用组内试验与复试的相关系数分析重现性;在结构中，使用Spearman相关系数，将获得的分数与评估健康相关生活质量的通用问卷的分数进行比较。结果儿童和家长的得分均值分别为2.44分和3.35分。Cronbach’s alpha系数分别为0.85和0.91，说明工具的内部一致性较好。儿童及其父母的复测与复测的类内相关系数分别为0.87和0.84，两份问卷均具有较好的再现性。特殊问卷与一般问卷的相关性显著(儿童为- 0.27，父母为- 0.64,p <0.05)。结论用于评价食物过敏儿童及其父母健康相关生活质量的具体问卷在巴西得到了满意的验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Jornal de Pediatria (Vers?o em Português)

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