Relative Validity and Reproducibility of a Dietary Screening Tool in Nigerian Health Care

IF 3.8 Q2 NUTRITION & DIETETICS Current Developments in Nutrition Pub Date : 2024-10-01 DOI:10.1016/j.cdnut.2024.104459
Nimisoere P Batubo , Carolyn I Auma , J Bernadette Moore , Michael A Zulyniak
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Abstract

Background

Hypertension and cardiovascular disease burden are rising rapidly in Nigeria. This trend is partly attributed to a transition from healthy to unhealthy dietary patterns. However, health care professionals lack a dietary screening tool to assess patient dietary intake and offer personalized dietary advice.

Objectives

We aimed to develop and validate a food frequency questionnaire (FFQ) that can quickly and accurately assess regional dietary intake for use by health care professionals in a hospital setting in Port Harcourt, Nigeria.

Methods

We recruited 58 patients from a single hospital in Nigeria. The FFQ was administered at baseline and again after 3 wk. To evaluate the validity of the FFQ, we used 3 repeated and nonconsecutive 24-h dietary recalls (24DR) as a reference method. Spearman rank correlations, Wilcoxon signed-rank tests, cross-classification, intraclass correlation coefficients (ICCs), and Bland–Altman analysis were performed in R software version 4.3.1 to assess the relative validity and reproducibility.

Results

The mean correlation coefficient (rs) between the FFQ and 24DR was 0.60 (P < 0.05), and ranged from 0.20 to 0.78. The Wilcoxon signed-rank tests indicated no significant differences in the 19 food groups queried (P > 0.05), except for fats and oils (P < 0.05). The exact agreement for classifying individuals into quartiles ranged from 17% for salt to 88% for processed meats and alcoholic drinks, with 90% of individuals classified into the same or neighboring quartile. Additionally, the Bland–Altman analysis demonstrated acceptable agreement, with >96% of observations within the acceptable limits of agreement for all food groups. For reproducibility, the ICC ranged from 0.31 for stew to 0.98 for fruit, with an mean ICC of 0.77 between the FFQs delivered 2 wk apart.

Conclusions

Our results support the use of the FFQ as a valid and reliable tool for ranking intakes of certain food groups among patients in a hospital setting in Nigeria.
The trial was registered at clinicaltrials.gov as NCT05973760.
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尼日利亚医疗保健中饮食筛查工具的相对有效性和可重复性
背景在尼日利亚,高血压和心血管疾病的发病率正在迅速上升。造成这一趋势的部分原因是从健康饮食模式向不健康饮食模式转变。然而,医护人员缺乏一种饮食筛查工具来评估患者的饮食摄入量并提供个性化的饮食建议。目的我们旨在开发并验证一种食物频率问卷(FFQ),该问卷可快速准确地评估地区饮食摄入量,供尼日利亚哈科特港一家医院的医护人员使用。我们从尼日利亚的一家医院招募了 58 名患者,分别在基线和 3 周后进行了 FFQ 问卷调查。为了评估 FFQ 的有效性,我们使用了 3 次重复且不连续的 24 小时饮食回顾(24DR)作为参考方法。结果 FFQ和24DR之间的平均相关系数(rs)为0.60(P <0.05),范围在0.20到0.78之间。Wilcoxon 符号秩检验表明,除了脂肪和油类(P <0.05)外,所询问的 19 个食物类别没有明显差异(P >0.05)。将个体划分为四分位数的准确一致率从食盐的 17% 到加工肉类和酒精饮料的 88%,90% 的个体被划分为相同或相邻的四分位数。此外,布兰-阿尔特曼分析表明了可接受的一致性,96%的观察结果在所有食物组可接受的一致性范围内。结论我们的研究结果支持使用 FFQ 作为一种有效、可靠的工具,对尼日利亚医院环境中患者的某些食物类别摄入量进行排序。
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来源期刊
Current Developments in Nutrition
Current Developments in Nutrition NUTRITION & DIETETICS-
CiteScore
5.30
自引率
4.20%
发文量
1327
审稿时长
8 weeks
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