To elucidate the influence of food consumption pattern on blood examination variables, we conducted a dietary survey and blood examination on 94 members of a women's association who lived in urban areas. A principal component analysis was applied to their consumed amounts of foods, which were grouped into 23, to clarify the overall consumption pattern. Using the principal components of each food group, the subjects were divided into two groups according to each individual's score: the negative score group and the positive score group; the differences in the blood examination results between the two groups were analyzed. In addition, the relationship between the food consumption pattern and the principal components of blood examination variables was examined. The following results were obtained. 1. The first principal component was recognized to represent?gtraditional vs. western diet", the former consisting mainly of rice-based food items such as rice, miso, sea weed, fishes and shellfishes and the latter of western diet-based food items such as milk, bread, egg and fats. In the same manner, it was judged that the second principal component represented?gmajor subsidiary food vs. minor subsidiary (processed) food", the former consisting of such food items as fats, miso, beans, green and yellow vegetables and tubers, the third principal component?gmeat vs. fish and shellfish", and the fourth principal component?gpale color vegetables, bread and fruits vs. alcoholic drinks". 2. In comparison of the blood examination results between the positive and negative score groups, significant differences (5% or less) were found in total protein and HDL cholesterol for the second principal component and in uric acid for the third principal component. 3. The principal component analysis based on blood examination variablesrevealed that the four components extracted were judged to represent?gliver function and erythrocyte system", ?gliver function vs. blood cell system", ?gcholesterol system", and "serum protein vs. renal function system". 4. According to correlation analysis between the food consumption pattern and the principal components of blood examination variables, significantly negative correlation was found between?gtraditional diet vs . western diet" and?gliver function and erythrocyte system" and between?gmajor subsidiary food vs . minor subsidiary (processed) food" and?gserum protein vs. renal function system".
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