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国家癌症研究所的饮食史问卷II和III之间的协议在一个预先概念队列中
Sachelly Julián-Serrano1, Martha R Koenig2, Tanran R Wang2
1Department of Public Health, University of Massachusetts Lowell, Lowell, MA, United States.
American journal of epidemiology
|July 14, 2024
概括
饮食历史问卷 (DHQ) 版本II和III显示了大多数营养素的良好可靠性和一致性. 某些营养素,如蛋白质和维生素D,可能需要校准,以便在饮食研究中一致使用.
科学领域:
- 营养流行病学 营养流行病学
- 饮食评估方法的方法论
背景情况:
- 食物频率问卷 (FFQ) 需要定期更新,以反映饮食变化.
- 在FFQ版本中保持一致的饮食测量是具有挑战性的.
研究的目的:
- 为了比较国家癌症研究所基于网络的饮食历史问卷 (DHQ) 的两个版本 (II和III) 的营养数据的可靠性和一致性.
- 评估在前性饮食研究中互换使用DHQ版本的适用性.
主要方法:
- 51名美国女性参与者 (21-45岁) 在随机顺序下,在两周内完成了两个DHQ版本.
- 类内相关系数 (ICCs) 对30种营养素的个人内可靠性进行了评估.
- 布兰德-阿尔特曼地块和95%的协议限值 (LOA) 评估了DHQ版本之间的营养协议.
主要成果:
- 来自碳水化合物和胆固醇的百分比能量 (ICCs 0.88) 的可靠性最高.
- 来自蛋白质和维生素D的百分比能量 (ICCs 0.56) 的可靠性最低.
- 大多数营养素在组级显示出良好的一致性;然而,蛋白质,脂肪,单不和脂肪和维生素D的评估显示出差异.
结论:
- 对于许多营养素,DHQ版本II和III显示出良好的到中等的可靠性和一致性.
- 某些营养素,特别是蛋白质和维生素D,可能需要在DHQ版本之间互换使用之前进行调整或校准.
- 这些发现对于确保在纵向研究中准确评估饮食摄入量至关重要.
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