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Ratios of Food Amounts across Three Portion Size Categories on a Food Frequency Questionnaire in Men and Women
Journal of the Academy of Nutrition and Dietetics ( IF 4.8 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.jand.2019.08.175
Minji Kang , Song-Yi Park , Carol J. Boushey , Lynne R. Wilkens , Loïc Le Marchand , Laurence N. Kolonel , Suzanne P. Murphy , Hee-Young Paik

BACKGROUND For some quantitative food frequency questionnaire (QFFQ) items, data may be insufficient to set gram weights for multiple portion size (PS) categories. Ratios of food amounts across PS categories may be used to quantify these PS for less frequently consumed food items. OBJECTIVE To explore the ratios of food amounts reported in 24-hour dietary recalls (24HDRs) by a sample of participants in a cohort study who chose the A (smallest) or C (largest) PS category on the QFFQ, relative to the food amounts for those who chose the B PS category. DESIGN This study was conducted as a cross-sectional design. PARTICIPANTS/SETTING Data were from participants (n=2,360) who completed three 24HDRs and the QFFQ in a calibration study of the Multiethnic Cohort Study in 1994-1997. MAIN OUTCOME MEASURES Median food amounts were calculated from 24HDRs for participants who selected each PS category (A, smallest; B; and C, largest) of items on the QFFQ. A-to-B and C-to-B ratios were computed if reported by five or more people in the 24HDRs: A-to-B ratios for 68 items (men) and 88 items (women); C-to-B ratios for 93 items (men) and 79 items (women). STATISTICAL ANALYSES PERFORMED The t test was used to compare the mean A-to-B ratios and C-to-B ratios as preset on the QFFQ with those from the 24HDRs and to examine sex differences. Analysis of variance was used to compare the mean ratios among race and ethnicity groups. RESULTS Mean A-to-B and C-to-B ratios were 0.71±0.15 and 1.45±0.35 in men and 0.71±0.15 and 1.44±0.40 in women based on the 24HDRs. Compared with the original QFFQ PS (A-to-B ratio=0.5±0.07; C-to-B ratio=1.8±0.30), the ratios were closer to 1 both in men and women (P<0.001). There were no significant sex differences or racial or ethnic differences. CONCLUSIONS These results provide guidance on appropriate ratios to use to set values for small and large PS categories on a QFFQ, particularly for items with insufficient information on usual PS.

中文翻译:

男性和女性食物频率问卷中三个部分大小类别的食物量比率

背景技术对于一些定量食物频率问卷(QFFQ)项目,数据可能不足以为多个份量(PS)类别设置克重。可以使用跨 PS 类别的食物数量比率来量化不常食用的食物项目的这些 PS。目的 探索队列研究中选择 A(最小)或 C(最大)PS 类别的参与者样本在 24 小时饮食回忆 (24HDR) 中报告的食物量与食物量的比率对于那些选择 B PS 类别的人。设计 本研究采用横断面设计。参与者/设置 数据来自参与者 (n=2,360),他们在 1994-1997 年多民族队列研究的校准研究中完成了三个 24HDRs 和 QFFQ。主要结果衡量标准 根据 24HDR 计算出 QFFQ 上每个 PS 类别(A,最小;B 和 C,最大)项目的参与者的食物中位数。如果 24HDR 中有五个或更多人报告,则计算 A 对 B 和 C 对 B 的比率:68 项(男性)和 88 项(女性)的 A 对 B 比率;93 个项目(男性)和 79 个项目(女性)的 C-B 比率。执行的统计分析 t 检验用于比较 QFFQ 中预设的平均 A 对 B 比率和 C 对 B 比率与来自 24 HDR 的那些比率,并检查性别差异。方差分析用于比较种族和族裔群体之间的平均比率。结果 基于 24HDR 的平均 A 对 B 和 C 对 B 比率在男性中分别为 0.71±0.15 和 1.45±0.35,在女性中分别为 0.71±0.15 和 1.44±0.40。与原QFFQ PS相比(A-B比=0.5±0.07;C-B比=1.8±0.30),男性和女性的比率均接近 1(P<0.001)。没有显着的性别差异或种族或民族差异。结论 这些结果为用于设置 QFFQ 上小和大 PS 类别值的适当比率提供了指导,特别是对于通常 PS 信息不足的项目。
更新日期:2020-02-01
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