Validity and reproducibility of a food frequency questionnaire by cognition in an older biracial sample
Validity and reproducibility of a food frequency questionnaire by cognition in an older biracial sample
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DOI：
10.1093/aje/kwg290
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发表时间：
2003-12-15
影响因子：
5
通讯作者：
Wilson, RS
中科院分区：
文献类型：
--
作者：
Morris, MC;Tangney, CC;Wilson, RS
目前尚不清楚老年人的饮食评估如何受到认知的影响。在1997-2000年的一项研究中，作者在芝加哥健康与老龄化项目的118名黑人和114名白色随机选择的68-99岁参与者中评估了改良的哈佛自我管理食物频率问卷（SFFQ）的有效性和可重复性。参与者在12个月内完成了多次24小时饮食回忆访谈（平均值= 3.6），并在第一个月和第12个月完成了两次SFFQs。15种营养素的平均能量调整组内相关系数为0.59，SFFQ评估的营养素摄入水平的1年再现性。平均能量调整皮尔逊相关系数为0.46之间的比较有效性营养摄入水平的SFFQ和饮食回忆。SFFQ在男性中的重现性较高，与饮食回忆的比较效度在女性中较高。年龄、种族、教育水平、慢性病或认知能力的相关性没有显著差异。改良的哈佛SFFQ是一种合理的饮食评估方法，即使在老年人群体中，其中一些人处于高龄，有慢性健康状况，并有认知障碍。
It is not currently known how dietary assessment in older persons is affected by cognition. In a 1997-2000 study, the authors assessed the validity and reproducibility of a modified Harvard self-administered food frequency questionnaire (SFFQ) among 118 Black and 114 White randomly selected participants, aged 68-99 years, of the Chicago Health and Aging Project. Participants completed multiple 24-hour dietary recall interviews (mean = 3.6) over 12 months and two SFFQs in the first and 12th months. The average energy-adjusted intraclass correlation coefficient for 15 nutrients was 0.59 for 1-year reproducibility in nutrient intake levels assessed by the SFFQ. The average energy-adjusted Pearson correlation coefficient was 0.46 for comparative validity between nutrient intake levels on the SFFQ and the dietary recalls. SFFQ reproducibility was higher among men, and comparative validity with the dietary recalls was higher among women. There were no remarkable differences in the correlations by age, race, educational level, presence of chronic conditions, or cognitive ability. The modified Harvard SFFQ is a reasonable method of dietary assessment even in a population of older persons, some of whom are at advanced age, have chronic health conditions, and have cognitive impairment.