Koebnick C, Wagner K, Thielecke F, Dieter G, Höhne A, Franke A, Garcia A L, Meyer H, Hoffmann I, Leitzmann P, Trippo U, Zunft H J F
Dietary Fibre and the Metabolic Syndrome Group, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany.
Eur J Clin Nutr. 2005 Sep;59(9):989-95. doi: 10.1038/sj.ejcn.1602200.
Estimating dietary intake is important for both epidemiological and clinical studies, but often lacks accuracy.
To investigate the accuracy and validity of energy intake estimated by an easy-to-use semiquantitative food record (EI(SQFR)) compared to total energy expenditure (TEE) estimated by doubly labelled water technique (EE(DLW)).
TEE was measured in 29 nonobese subjects using the doubly labelled water method over a period of 14 days. Within this period, subjects reported their food consumption by a newly developed semiquantitative food record for 4 consecutive days. Energy intake was calculated using the German Food Code and Nutrition Data Base BLS II.3.
A good correlation was observed between EI(SQFR) and EE(DLW) (r = 0.685, P < 0.001). The mean difference between EI(SQFR) and EE(DLW) was -1.7+/-2.6 MJ/day (-14+/-21%, P = 0.002). An underestimation of EI(SQFR) <10% was observed in nine subjects (31%), of 10-20% in six subjects (21%), and of >20% in nine subjects (31%). In five subjects (17%), an overestimation of EI(SQFR) was observed.
The easy-to-use semiquantitative food record provided good estimates of EI in free-living and nonobese adults without prior detailed verbal instructions. The presented food record has limitations regarding accuracy at the individual level.
估计饮食摄入量对流行病学和临床研究都很重要,但往往缺乏准确性。
与用双标水技术估计的总能量消耗(TEE)[即EE(DLW)]相比,研究一种易于使用的半定量食物记录法估计的能量摄入量[即EI(SQFR)]的准确性和有效性。
采用双标水法对29名非肥胖受试者进行了为期14天的总能量消耗测量。在此期间,受试者连续4天通过一种新开发的半定量食物记录法报告其食物摄入量。使用德国食物编码和营养数据库BLS II.3计算能量摄入量。
观察到EI(SQFR)与EE(DLW)之间存在良好的相关性(r = 0.685,P < 0.001)。EI(SQFR)与EE(DLW)之间的平均差值为-1.7±2.6 MJ/天(-14±21%,P = 0.002)。9名受试者(31%)的EI(SQFR)低估<10%,6名受试者(21%)的EI(SQFR)低估为10 - 20%,9名受试者(31%)的EI(SQFR)低估>20%。5名受试者(17%)的EI(SQFR)出现高估。
这种易于使用的半定量食物记录法在没有事先详细口头指导的情况下,能对自由生活的非肥胖成年人的能量摄入量做出良好估计。所呈现的食物记录在个体水平的准确性方面存在局限性。