Number of 24-hour diet recalls needed to estimate energy intake.
Number of 24-hour diet recalls needed to estimate energy intake.
复制标题
估计能量摄入所需的24小时饮食召回数量。
DOI：
10.1016/j.annepidem.2009.04.010
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发表时间：
2009-08
影响因子：
5.6
通讯作者：
Hebert, James R.
中科院分区：
文献类型：
--
作者：
Ma, Yunsheng;Olendzki, Barbara C.;Pagoto, Sherry L.;Hurley, Thomas G.;Magner, Robert P.;Ockene, Ira S.;Schneider, Kristin L.;Merriam, Philip A.;Hebert, James R.
关键词：
24小时的饮食回忆访谈(24小时)被用来评估饮食和验证其他饮食评估工具。因此，重要的是要知道需要多少24小时来描述一个人的摄入量。79名中年白人女性在14天的时间里完成了7个24小时的测试，在此期间，能量消耗(EE)由双标记水法(DLW)确定。使用配对t检验将平均每日摄入量与DLW衍生的EE进行比较。线性混合模型被用来评估呼叫顺序和星期几对24HR衍生能量摄入量的影响，同时调整了教育、相对体重、社会期望以及呼叫顺序和社会期望之间的交互作用。DLW的平均EE为2115千卡/天。调整后的24小时能量摄入量在呼叫1最低(1501千卡/天)；在呼叫2和3显著较高(分别为2246千卡/天和2315千卡/天)。周五的能量摄入量明显低于周日。前两次呼叫的平均能量摄入比第一次呼叫更接近真实的能量消耗，而前三次呼叫的平均进一步改善了估计(两次比较的p=0.02)。更多的电话并没有改善估计。前24小时的能量摄入量少报。三个24小时似乎是估计能量摄入量的最佳时间。
Twenty-four-hour diet recall interviews (24HRs) are used to assess diet and to validate other diet assessment instruments. Therefore it is important to know how many 24HRs are required to describe an individual's intake. Seventy-nine middle-aged white women completed seven 24HRs over a 14-day period, during which energy expenditure (EE) was determined by the doubly labeled water method (DLW). Mean daily intakes were compared to DLW-derived EE using paired t tests. Linear mixed models were used to evaluate the effect of call sequence and day of the week on 24HR-derived energy intake while adjusting for education, relative body weight, social desirability, and an interaction between call sequence and social desirability. Mean EE from DLW was 2115 kcal/day. Adjusted 24HR-derived energy intake was lowest at call 1 (1501 kcal/day); significantly higher energy intake was observed at calls 2 and 3 (2246 and 2315 kcal/day, respectively). Energy intake on Friday was significantly lower than on Sunday. Averaging energy intake from the first two calls better approximated true energy expenditure than did the first call, and averaging the first three calls further improved the estimate (p = 0.02 for both comparisons). Additional calls did not improve estimation. Energy intake is underreported on the first 24HR. Three 24HRs appear optimal for estimating energy intake.
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