Toobert Deborah J, Strycker Lisa A, Hampson Sarah E, Westling Erika, Christiansen Steven M, Hurley Thomas G, Hébert James R
Oregon Research Institute, Eugene, OR 97403-1983, USA.
J Am Diet Assoc. 2011 Oct;111(10):1578-83. doi: 10.1016/j.jada.2011.07.004.
Validated self-report methods of dietary assessment exist and might be improved in terms of both accuracy and cost-efficiency with computer technology. The objectives of this preliminary study were to develop an initial version of an interactive CD-ROM program to estimate fruit, vegetable, and fat intake, and to compare it to multiple 24-hour dietary recalls (averaged over 3 days). In 2009, overweight male and female adults (n=205) from Lane County, OR, completed computerized and paper versions of fruit, vegetable, and fat screening instruments, and multiple 24-hour dietary recalls. Summary scores from the 10-item National Cancer Institute Fruit and Vegetable Scan and the 18-item Block Fat Screener were compared to multiple 24-hour dietary recall-derived fruit/vegetable and fat intake estimates (criterion measures). Measurement models were used to derive deattenuated correlations with multiple 24-hour dietary recalls of paper and CD-ROM administrations of Fruit and Vegetable Scan fruit intake, vegetable intake, and fruit and vegetable intake, and Block Fat Screener fat intake. The computerized assessment and paper surveys were related to multiple 24-hour dietary recall-derived fruit/vegetable and fat intake. Deattenuated correlation coefficients ranged from 0.50 to 0.73 (all P≤0.0001). The CD-ROM-derived estimate of fruit intake was more closely associated with 24-hour dietary recall (r=0.73) than the paper-derived estimate (r=0.54; P<0.05), but the other comparisons did not differ significantly. Findings from this preliminary study with overweight adults indicate the need for additional enhancements to the CD-ROM assessment and more extensive validation studies.
现有的经过验证的饮食评估自我报告方法，借助计算机技术在准确性和成本效益方面可能会有所改进。这项初步研究的目的是开发一个交互式光盘程序的初始版本，以估计水果、蔬菜和脂肪的摄入量，并将其与多次24小时饮食回忆（3天的平均值）进行比较。2009年，来自俄勒冈州莱恩县的超重成年男性和女性（n = 205）完成了水果、蔬菜和脂肪筛查工具的计算机化版本和纸质版本，以及多次24小时饮食回忆。将来自10项美国国立癌症研究所水果和蔬菜扫描以及18项布洛克脂肪筛查器的汇总分数，与多次24小时饮食回忆得出的水果/蔬菜和脂肪摄入量估计值（标准测量）进行比较。使用测量模型得出水果和蔬菜扫描中水果摄入量、蔬菜摄入量以及水果和蔬菜摄入量的纸质版和光盘版与多次24小时饮食回忆之间的去衰减相关性，以及布洛克脂肪筛查器脂肪摄入量与多次24小时饮食回忆之间的去衰减相关性。计算机化评估和纸质调查与多次24小时饮食回忆得出的水果/蔬菜和脂肪摄入量相关。去衰减相关系数范围为0.50至0.73（所有P≤0.0001）。光盘得出的水果摄入量估计值与24小时饮食回忆的相关性（r = 0.73）比纸质得出的估计值（r = 0.54；P<0.05）更紧密，但其他比较没有显著差异。这项针对超重成年人的初步研究结果表明，需要对光盘评估进行更多改进以及开展更广泛的验证研究。
