Knudsen Markus Dines, Carlsen Monica Hauger, Hjartåker Anette, Blomhoff Rune, Henriksen Hege Berg
Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
Section for colorectal cancer screening, Cancer Registry of Norway, Oslo, Norway.
Food Nutr Res. 2024 Aug 26;68. doi: 10.29219/fnr.v68.10366. eCollection 2024.
We have developed a digital semi-quantitative food frequency and lifestyle questionnaire, the DIGIKOST-FFQ, based on the validated paper-based NORDIET-FFQ.
The study aims to investigate the reproducibility of the DIGIKOST-FFQ and to compare the DIGIKOST-FFQ against the NORDIET-FFQ for the adjusted questions for intakes of fruits, vegetables, whole grains, fish, meat, and dairy products.
Participants were recruited from May to September 2021 through a random sample from the National Population Register and advertisements on Facebook in Norway. In the reproducibility study, the DIGIKOST-FFQ was completed twice by the participants, 1-2 months apart. In the comparison study, the DIGIKOST-FFQ was completed 1-2 months prior to the NORDIET-FFQ.
In the reproducibility study, 317 individuals were included. For 12 out of 16 food groups there were no significant differences in intake estimations between the first and second DIGIKOST-FFQ administrations. A small but significant median difference was observed for fruits (6 g/day) and vegetables (24 g/day). Correlations were satisfactory for all items ( = 0.60-1.00), and in the cross-classification 85% of the participants were classified into the same or adjacent quartile for all items. The comparison study included 81 individuals. Compared to the NORDIET-FFQ a significant median difference was observed for fruits 29 g/day, vegetables 36 g/day, whole grains -10 g/day, and red meat -11 g/day, but not for fish, processed meat, or dairy products.
The DIGIKOST-FFQ was able to reproduce diet and lifestyle at the group level. An intended difference for the food groups where questions had been adjusted, was observed between DIGIKOST-FFQ and NORDIET-FFQ in the comparison study.
我们基于经过验证的纸质版NORDIET - FFQ开发了一种数字半定量食物频率和生活方式问卷，即DIGIKOST - FFQ。
本研究旨在调查DIGIKOST - FFQ的可重复性，并将DIGIKOST - FFQ与NORDIET - FFQ在水果、蔬菜、全谷物、鱼类、肉类和乳制品摄入量调整问题方面进行比较。
2021年5月至9月，通过从挪威国家人口登记册中随机抽样以及在脸书上发布广告招募参与者。在可重复性研究中，参与者分1至2个月的间隔两次完成DIGIKOST - FFQ。在比较研究中，DIGIKOST - FFQ在NORDIET - FFQ之前1至2个月完成。
在可重复性研究中，纳入了317名个体。16个食物组中有12个在第一次和第二次DIGIKOST - FFQ调查之间的摄入量估计上没有显著差异。水果（6克/天）和蔬菜（24克/天）观察到较小但显著的中位数差异。所有项目的相关性都令人满意（= 0.60 - 1.00），并且在交叉分类中，85%的参与者在所有项目中被归类到相同或相邻的四分位数。比较研究包括81名个体。与NORDIET - FFQ相比，水果有显著的中位数差异29克/天，蔬菜36克/天，全谷物 - 10克/天，红肉 - 11克/天，但鱼类、加工肉类或乳制品没有差异。
DIGIKOST - FFQ能够在群体水平上重现饮食和生活方式。在比较研究中，观察到DIGIKOST - FFQ和NORDIET - FFQ在问题已调整的食物组方面存在预期差异。
