Assis Maria Alice Altenburg de, Guimarães Débora, Calvo Maria Cristina Marino, Barros Mauro Virgílio Gomes de, Kupek Emil
Departamento de Nutrição, Universidade Federal de Santa Catarina, Florianópolis, SC, Brasil.
Rev Saude Publica. 2007 Dec;41(6):1054-7. doi: 10.1590/s0034-89102007000600022.
The aim of the study was to assess the reproducibility and validity of the previous day food questionnaire (PDFQ) for schoolchildren. The questionnaire is illustrated with 21 foods and was designed for use at group level. The participants were 131 schoolchildren aged eight to ten years who were studying full-time in a public school in a city of Southern Brazil, in 2005. Reproducibility was assessed by applying the questionnaire twice on the same day. Validity was assessed by comparing the food items selected on the questionnaire and direct observations from three school meals on the previous day. The questionnaire presented high sensitivity, ranging from 73.4% (beans) to 95.5% (rice), and high specificity, ranging from 87.3% (fruits) to 98.8% (beans). It was concluded that the questionnaire was capable of generating reproducible and valid data for assessing the food intake of schoolchildren on the previous day.
本研究的目的是评估针对学童的前一日食物问卷（PDFQ）的可重复性和有效性。该问卷列举了21种食物，设计用于群体层面。研究对象为2005年在巴西南部一座城市的一所公立学校全日制就读的131名8至10岁的学童。通过在同一天对问卷进行两次应用来评估可重复性。通过比较问卷上选择的食物项目与前一日三顿学校餐食的直接观察结果来评估有效性。该问卷呈现出高敏感性，范围从73.4%（豆类）至95.5%（大米），以及高特异性，范围从87.3%（水果）至98.8%（豆类）。得出的结论是，该问卷能够生成可重复且有效的数据，用于评估学童前一日的食物摄入量。
