Calibration of the dietary questionnaire for a multiethnic cohort in Hawaii and Los Angeles
Calibration of the dietary questionnaire for a multiethnic cohort in Hawaii and Los Angeles
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DOI：
10.1093/oxfordjournals.aje.a010214
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发表时间：
2000-02-15
影响因子：
5
通讯作者：
Kolonel, LN
中科院分区：
文献类型：
--
作者：
Stram, DO;Hankin, JH;Kolonel, LN
在夏威夷和洛杉矶的一项多种族队列研究中使用的饮食问卷的性能在一项校准子研究中进行了评估，该研究将问卷报告的饮食与三个 24 小时饮食回忆进行比较。对于校准子研究，从队列成员中随机选择按性别和种族定义的八个亚组（非裔美国人、日裔美国人、拉丁裔和白人）中的每一个的受试者，并在大约 2 个月内 3 次通过电话回忆评估每个参与者前一天的饮食。完成 3 次 24 小时回忆后，每个校准对象都会收到第二份调查问卷； 1,606 人完成了三份回忆和第二份调查问卷（每个种族性别群体 127 至 267 人）。该报告描述了 24 小时回忆与第二份调查问卷中一组选定的大量营养素和微量营养素之间关系的相关系数和校准斜率，如绝对摄入量、营养素密度和卡路里调整营养素。在所有亚组中，能量调整后问卷与 24 小时回忆之间相关性的估计值（营养密度的平均相关性范围为 0.57-0.74，卡路里调整的营养物的平均相关性范围为 0.55-0.74）比使用绝对营养值时（平均范围为 0.26-0.57）更大。对于绝对营养素摄入量，白人的相关性最大，日裔美国人和拉丁裔的相关性较高，非裔美国人的相关性最低。能量调整后，亚组之间的差异缩小，相关性总体上非常令人满意。
The performance of the dietary questionnaire used in a multiethnic cohort study in Hawaii and Los Angeles was assessed in a calibration substudy that compared diet reported from the questionnaire with three 24-hour dietary recalls. For the calibration substudy, subjects from each of eight subgroups defined by sex and ethnic group (African-American, Japanese-American, Latino, and White) were chosen randomly from among the cohort members, and each participant's previous day's diet was assessed by telephone recall on three occasions over approximately 2 months. After completing the three 24-hour recalls, each calibration subject was sent a second questionnaire; 1,606 persons completed three recalls and a second questionnaire (127 to 267 per ethnic-sex group). This report describes correlation coefficients and calibration slopes for the relation between the 24-hour recalls and second questionnaire Values for a selected set of macro- and micronutrients, as absolute intakes, nutrient densities, and calorie-adjusted nutrients. In all subgroups, estimates of the correlation between the questionnaire and 24-hour recalls were greater after energy adjustment (average correlations ranged from 0.57-0.74 for nutrient densities and from 0.55-0.74 for calorie-adjusted nutrients) than when absolute nutrient values were used (average range 0.26-0.57). For absolute nutrient intakes, the correlations were greatest for Whites, somewhat tower for Japanese-Americans and Latinos, and lowest for African-Americans. After energy adjustment, the difference between subgroups were diminished, and the correlations were generally highly satisfactory.