Department of Social and Preventive Epidemiology, Graduate School of Medicine, the University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
Public Health Nutr. 2010 Jul;13(7):1080-9. doi: 10.1017/S1368980009993211. Epub 2010 Jan 15.
Although dietary pattern approaches derived from dietary assessment questionnaires are widely used, only a few studies in Western countries have reported the validity of this approach. We examined the relative validity of dietary patterns derived from a self-administered diet history questionnaire (DHQ) among Japanese adults.
The DHQ, assessing diet during the preceding month, and 4 d dietary records (DR) were collected in each season over one year. To derive dietary patterns, 145 food items in the DHQ and 1259 in the DR were classified into thirty-three predefined food groups, and entered into a factor analysis.
Three areas in Japan; Osaka (urban), Nagano (rural inland) and Tottori (rural coastal).
A total of ninety-two Japanese women and ninety-two Japanese men aged 31-76 years.
We identified three dietary patterns ('healthy', 'Western' and 'Japanese traditional') in women and two ('healthy' and 'Western') in men, which showed a relatively similar direction and magnitude of factor loadings of food groups across the first and mean of four DHQ (DHQ1 and mDHQ, respectively) and 16 d DR. The Pearson correlation coefficients between DHQ1 and 16 d DR for the healthy, Western and Japanese traditional patterns in women were 0.57, 0.36 and 0.44, and for the healthy and Western patterns in men were 0.62 and 0.56, respectively. When mDHQ was examined, the correlation coefficients improved for women (0.45-0.69).
Dietary patterns derived from the DHQ could be used for epidemiological studies as surrogates of those derived from DR.
尽管基于饮食评估问卷得出的饮食模式方法已被广泛应用，但西方国家仅有少数研究报告了该方法的有效性。我们检验了自填式饮食史问卷（DHQ）得出的饮食模式在日本成年人中的相对有效性。
DHQ 评估前一个月的饮食情况，每年每个季节收集 4 d 的饮食记录（DR）。为了推导出饮食模式，DHQ 中的 145 种食物和 DR 中的 1259 种食物被分为 33 个预先设定的食物组，并进行因子分析。
日本三个地区；大阪（城市）、长野（内陆农村）和鸟取（沿海农村）。
共 92 名年龄在 31-76 岁的日本女性和 92 名日本男性。
我们在女性中识别出三种饮食模式（“健康”、“西方”和“日本传统”），在男性中识别出两种（“健康”和“西方”），这些模式在 DHQ1 和 mDHQ（分别为第一次和四次 DHQ 的平均值）和 16 d DR 中食物组的因子负荷方向和大小相对相似。女性中 DHQ1 与 16 d DR 的健康、西方和日本传统模式的 Pearson 相关系数分别为 0.57、0.36 和 0.44，男性中健康和西方模式的相关系数分别为 0.62 和 0.56。当 mDHQ 被检测时，女性的相关系数有所提高（0.45-0.69）。
DHQ 得出的饮食模式可作为 DR 得出的饮食模式的替代物，用于流行病学研究。
