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从 24 小时饮食回忆中得出的低碳水化合物饮食和低脂肪饮食评分的再现性和有效性

发布时间:2025-06-16 信息来源:安徽省环境与人口健康重点实验室 作者: 浏览:10
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Reproducibility and validity of low-carbohydrate diet and low-fat diet scores derived from 24-hour dietary recalls

24 小时饮食回忆中得出的低碳水化合物饮食和低脂肪饮食评分的再现性和有效性


Author: Meiling Li, Xiude Li, Kewan Yin, Tingting Wang, ChaoJiang, Hongjuan Cao, Zhuang Zhang, Jiangwei Sun, Wanshui Yang

Source:American Journal of Epidemiology

DOI:10.1093/aje/kwaf087


Abstract

The reproducibility and validity of low-carbohydrate diets (LCD) and low-fat diets (LFD) from 24-hour dietary recall (24HDR) remain unclear. We evaluated the performance of 24HDR-based assessments of 6 dietary patterns (overall, healthful, and unhealthful LCD/LFD) to determine the optimum number of 24HDR in epidemiological studies. Participants (n=432, 185 men and 247 women) aged 18-84 years from the Anhui Lifestyle Validation Study (ALVS) completed 4 quarterly 3 consecutive 24HDRs (2 weekdays and 1 weekend day) during July 2021 to July 2022. Reproducibility was evaluated by energy-adjusted intraclass correlation coefficient (ICC). Validity was evaluated by comparing the estimates against those from the average of 12 24HDRs using energy-adjusted deattenuated spearman correlation coefficient (rc). Reproducibility and validity increased with an escalating number of 24HDRs. Dietary pattern scores from 2 24HDRs showed moderate reproducibility (ICC: 0.40-0.47), except unhealthful LFD with the ICC of 0.37, while 4 24HDRs yielded a moderate reproducibility for all dietary patterns (ICC: 0.43-0.59). The validity of the 6 dietary patterns was moderate for 1 24HDR (rc: 0.44-0.58) and moderate or strong for ≥2 24HDRs (rc: 0.56-0.98). Two 24HDRs show reasonable performance in measuring most LCD/LFD scores, and 4 24HDRs are sufficient for all dietary patterns.

Keywords:24-hour dietary recall; Reproducibility; low-carbohydrate diet; low-fat diet; validity


摘要

从 24 小时膳食回顾(24HDR)中得出的低碳水化合物膳食(LCD)和低脂肪膳食(LFD)的可重复性和有效性仍不清楚。我们评估了基于 24HDR 的 6 种膳食模式(总体、健康和不健康 LCD/LFD)的评估结果,以确定流行病学研究中 24HDR 的最佳数量。安徽省生活方式验证研究(ALVS)的参与者(n=432,男性 185 人,女性 247 人),年龄在 18-84 岁之间,在 2021 年 7 月至 2022 年 7 月期间完成了每季度 4 次、连续 3 次的 24HDR (2 个工作日和 1 个周末日)。再现性通过能量调整后的类内相关系数(ICC)进行评估。使用能量调整后的去衰减矛曼相关系数 (rc) 将估算值与 12 次 24HDR 的平均值进行比较,以评估有效性。再现性和有效性随着 24HDR 的增加而提高。除不健康低脂饮食的 ICC 为 0.37 外,2 份 24HDR 的膳食模式得分显示出中等程度的再现性(ICC:0.40-0.47),而 4 份 24HDR 的所有膳食模式得分显示出中等程度的再现性(ICC:0.43-0.59)。1 份 24HDR 对 6 种膳食模式的有效性为中等(rc:0.44-0.58),≥2 份 24HDR 的有效性为中等或强(rc:0.56-0.98)。两个 24HDR 在测量大多数 LCD/LFD 分数方面表现出合理的性能,而 4 个 24HDR 足以测量所有膳食模式。

关键词24小时膳食回忆;再现性;低碳水化合物饮食;低脂肪饮食;有效性


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