Department of Psychology, Macquarie University, Sydney, New South Wales, Australia.
J Hum Nutr Diet. 2013 Jun;26(3):234-42. doi: 10.1111/jhn.12008. Epub 2012 Nov 29.
The present study aimed to conduct a preliminary investigation of the validity and reliability of a short dietary questionnaire designed to assess dietary intake of saturated fat and free sugars.
Forty students at Macquarie University, aged 17-46 years, completed the Dietary Fat and free Sugar - Short Questionnaire (DFS), a full-length food frequency questionnaire (C-FFQ) and a 4-day diet diary (DD). After a mean (SD) follow-up time of 158 (10) days, 29 participants completed a second administration of the DFS.
Correlation coefficients comparing DFS scores with the percentage energy from saturated fat and free sugar assessed by the C-FFQ and DD ranged from 0.35 to 0.71. The intraclass correlation (0.83) was high, indicating good reliability.
These results suggest that the DFS is a valid and reliable measure of saturated fat and free sugar intake. Because it is quick to administer and score, in the public domain, and easy to interpret, it maybe useful as a screener, simple self-check tool or for large-scale epidemiological studies.
本研究旨在初步调查一种评估饱和脂肪和游离糖饮食摄入量的简短膳食问卷的有效性和可靠性。
麦考瑞大学的 40 名年龄在 17-46 岁的学生完成了膳食脂肪和游离糖-简短问卷（DFS）、完整的食物频率问卷（C-FFQ）和 4 天饮食日记（DD）。在平均（SD）随访时间 158（10）天后，29 名参与者完成了 DFS 的第二次测试。
DFS 评分与 C-FFQ 和 DD 评估的饱和脂肪和游离糖能量百分比之间的相关系数范围为 0.35 至 0.71。内部一致性（0.83）较高，表明可靠性高。
这些结果表明，DFS 是评估饱和脂肪和游离糖摄入量的有效且可靠的方法。由于它易于管理和评分，且在公共领域中易于解释，因此它可能作为筛查工具、简单的自我检查工具或用于大规模的流行病学研究有用。
