The application of a handheld personal digital assistant with camera and mobile phone card (Wellnavi) to the general population in a dietary survey
The application of a handheld personal digital assistant with camera and mobile phone card (Wellnavi) to the general population in a dietary survey
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DOI：
10.3177/jnsv.53.109
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发表时间：
2007-04-01
影响因子：
1.6
通讯作者：
Kira, Shohei
中科院分区：
文献类型：
--
作者：
Kikunaga, Shigeshi;Tin, Tomoe;Kira, Shohei
这项研究首先检验了一种新的饮食评估方法--带相机和手机卡的手持个人数字助理(Wellnavi)的有效性，并与作为参考方法的称重饮食记录进行了比较；第二，在普通人群中，27名男性和48名女性志愿者采用Wellnavi方法进行肥胖和漏报之间的关系。在效度上，除铁、镁、维生素E等营养素外，所有受试者的每日营养素摄入量与称重膳食记录法之间均有显著相关性(0.32~0.75)。男子组和女子组获得的结果与所有受试者组相似。在所有受试者以及男性组和女性组中，两种饮食评估方法之间的每日营养素摄入量差异有统计学意义。然而，在非肥胖男性中，两种饮食评估方法在许多每日营养素摄入量方面的差异得到了很好的一致。除钠、铁、脂溶维生素等营养素外，所有受试者、男性组和女性组的Wellnavi法估算的营养素摄入量均显著低于称重膳食记录法估计值。关于肥胖和漏报之间的关系，在韦尔纳维法中，女性肥胖不是漏报的一个因素，但在肥胖男性中，这种关系的存在是不可否认的。韦尔纳维法每日营养素摄入量低于称重膳食记录法的原因，可能是由于韦尔纳维仪的数码照片质量不高所致。通过改进该仪器的数码照片质量，Wellnavi方法可以成为一种有用的新的饮食评估方法，以从不同年龄和职业的人那里获得准确的饮食信息，并从普通人群中获得受试者的各种身体状况。
This study was carried out to examine first, the validity of a new dietary assessment method, a handheld personal digital assistant with camera and mobile phone card (Wellnavi), in comparison with a weighed diet record as a reference method and second, the relation between obesity and underreporting in the Wellnavi method in 27 men and 48 women volunteers aged 30-67 y from the general population. On the validity, there were significant correlations (0.32-0.75) between the daily nutrient intakes measured by the Wellnavi method and the weighed diet record method in all the subjects except for some nutrients such as iron, magnesium and vitamin E. Results similar to those from the group of all the subjects were obtained in the men's group and the women's group. In all the subjects and the men's group and the women's group, the differences in the daily nutrient intakes between the two dietary assessment methods were statistically significant. However, good agreement of the differences between the two dietary assessment methods for many daily nutrient intakes was obtained in the nonobese men. The nutrient intakes estimated by the Wellnavi method in all the subjects and the men's group and the women's group were significantly lower than those values estimated by the weighed diet record method except for some nutrients such as sodium, iron and fat-soluble vitamins. With respect to the relation between obesity and underreporting, the obesity in women was not a factor of underreporting in the Wellnavi method, but the presence of this relation was undeniable in the obese men. The reason why the values of daily nutrient intakes in the Wellnavi method were lower than those estimated by the weighed diet record method seemed to be the low quality of the digital photo of the Wellnavi instrument. By improving the digital photo quality of this instrument, the Wellnavi method could become a useful new dietary assessment method to get accurate dietary information from people of a wide range of age and occupation, and a wide variety of physical situations of subjects from the general population.