澳大利亚成年人食物频率问卷的可重复性和比较效度

Reproducibility and comparative validity of a food frequency questionnaire for Australian adults.

作者信息

Collins Clare E, Boggess May M, Watson Jane F, Guest Maya, Duncanson Kerith, Pezdirc Kristine, Rollo Megan, Hutchesson Melinda J, Burrows Tracy L

机构信息

School of Health Sciences, Faculty of Health, University of Newcastle, Callaghan, NSW, Australia; Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, NSW, Australia.

School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ, USA.

出版信息

Clin Nutr. 2014 Oct;33(5):906-14. doi: 10.1016/j.clnu.2013.09.015. Epub 2013 Oct 9.

DOI:10.1016/j.clnu.2013.09.015

PMID:24144913

Abstract

BACKGROUND

Food frequency questionnaires (FFQ) are used in epidemiological studies to investigate the relationship between diet and disease. There is a need for a valid and reliable adult FFQ with a contemporary food list in Australia.

AIMS

To evaluate the reproducibility and comparative validity of the Australian Eating Survey (AES) FFQ in adults compared to weighed food records (WFRs).

METHODS

Two rounds of AES and three-day WFRs were conducted in 97 adults (31 males, median age and BMI for males of 44.9 years, 26.2 kg/m(2), females 41.3 years, 24.0 kg/m(2). Reproducibility was assessed over six months using Wilcoxon signed-rank tests and comparative validity was assessed by intraclass correlation coefficients (ICC) estimated by fitting a mixed effects model for each nutrient to account for age, sex and BMI to allow estimation of between and within person variance.

RESULTS

Reproducibility was found to be good for both WFR and FFQ since there were no significant differences between round 1 and 2 administrations. For comparative validity, FFQ ICCs were at least as large as those for WFR. The ICC of the WFR-FFQ difference for total energy intake was 0.6 (95% CI 0.43, 0.77) and the median ICC for all nutrients was 0.47, with all ICCs between 0.15 (%E from saturated fat) and 0.7 (g/day sugars).

CONCLUSIONS

Compared to WFR the AES FFQ is suitable for reliably estimating the dietary intakes of Australian adults across a wide range of nutrients.

摘要

背景

食物频率问卷（FFQ）用于流行病学研究，以调查饮食与疾病之间的关系。澳大利亚需要一份包含当代食物清单的有效且可靠的成人FFQ。

目的

评估澳大利亚饮食调查（AES）FFQ与称重食物记录（WFR）相比在成年人中的可重复性和比较有效性。

方法

对97名成年人（31名男性，男性中位年龄和BMI分别为44.9岁、26.2kg/m²，女性为41.3岁、24.0kg/m²）进行两轮AES和为期三天的WFR。使用Wilcoxon符号秩检验在六个月内评估可重复性，并通过拟合每个营养素的混合效应模型以考虑年龄、性别和BMI来估计组内相关系数（ICC），从而评估比较有效性，以估计个体间和个体内的差异。

结果

由于第一轮和第二轮调查之间没有显著差异，因此发现WFR和FFQ的可重复性都很好。对于比较有效性，FFQ的ICC至少与WFR的一样大。总能量摄入的WFR - FFQ差异的ICC为0.6（95%CI 0.43，0.77），所有营养素的中位ICC为0.47，所有ICC在0.15（饱和脂肪占能量百分比）至...