Xue Hongmei, Yang Mingzhe, Liu Yan, Duan Ruonan, Cheng Guo, Zhang Xiao
Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.
Nutrition and Health Research Centre, By-Health Co. LTD, Guangzhou, China.
Nutr Diet. 2017 Jul;74(3):298-307. doi: 10.1111/1747-0080.12315. Epub 2016 Oct 10.
To determine the relative validity of a 2-day 24-hour dietary recall (HR) designed to assess energy and nutrient intake among Chinese adults compared with a 2-day weighed dietary record (WD).
Data were obtained from an ongoing population-based, prospective cohort study of adults aged 18-65 years in South China. A total of 41 adults completing a HR and a WD within 14 days were included in the present analysis. Estimations of individual mean differences, Spearman's correlation coefficients, cross-classifications and Bland-Altman plots were used to assess the agreement between the intakes of energy and 18 nutrients obtained from the HR and the WD.
With the exception of total fat, saturated fatty acids, thiamine, potassium and magnesium, the energy and nutrient intakes between the HR and WD showed no significant differences. All dietary intakes that were evaluated by the HR were correlated significantly with the dietary intake from the WD (de-attenuated correlation coefficients ranged from 0.10 to 0.87). The proportion of participants classified into quartiles correctly ranged from 61% for tocopherol intake to 90% for energy intake. The weighted k values ranking the participants ranged from 0.11 for tocopherol intake to 0.41 for the intakes of energy and calcium. The Bland-Altman plots showed moderate/good agreement among all the dietary intakes that were estimated from the HR and WD, except for total fat.
This study suggests that an HR could be a valid tool for estimating the energy and nutrient intakes among adults in South China at the group level.
旨在确定与两日称重饮食记录（WD）相比，用于评估中国成年人能量和营养素摄入量的两日24小时饮食回顾（HR）的相对有效性。
数据来自一项正在进行的针对中国南方18至65岁成年人的基于人群的前瞻性队列研究。本分析纳入了41名在14天内完成饮食回顾和称重饮食记录的成年人。使用个体平均差异估计、Spearman相关系数、交叉分类和Bland-Altman图来评估从饮食回顾和称重饮食记录中获得的能量和18种营养素摄入量之间的一致性。
除总脂肪、饱和脂肪酸、硫胺素、钾和镁外，饮食回顾和称重饮食记录之间的能量和营养素摄入量无显著差异。饮食回顾评估的所有饮食摄入量与称重饮食记录的饮食摄入量均显著相关（去衰减相关系数范围为0.10至0.87）。正确分类到四分位数的参与者比例范围从生育酚摄入量的61%到能量摄入量的90%。对参与者进行排名的加权k值范围从生育酚摄入量的0.11到能量和钙摄入量的0.41。Bland-Altman图显示，除总脂肪外，饮食回顾和称重饮食记录估计的所有饮食摄入量之间具有中度/良好的一致性。
本研究表明，饮食回顾在群体水平上可能是估计中国南方成年人能量和营养素摄入量的有效工具。
