Comparative studies on the change of food consumption structure and behavior in a rural town during the lat thirty years.

对爱媛县Ikazaki町居民进行了近30年的3次营养调查，分析了食物消费结构的变化及其与几种疾病的关系。（1）对37个食物组的数据进行主因子分析，提取出3个因子：辅食摄入量、主食面包习惯、三是辅食摄入质量。(2)从第一次调查到最后一次调查，第一和第三个因素的得分都有所增加，这表明在过去30年里，辅食和肉类/大豆产品的摄入量有所增加，但第二个因素的得分没有变化，可以说大米作为主食的作用仍然很重要。(3)食物摄入与健康的关系分析表明，贫血不仅与营养失衡有关，还与日常生活活动量过多有关，高血压与衰老和肥胖有关，且超重男性在第一因子得分较高。

Nutrition surveys were performed for the inhabitants in Ikazaki-town, Ehime Prefecture, three times during the last thirty years and the changing pattern of food consumption structure and its relation to several disorders were analyzed.Results were as follows:(1) Multivariate analysis, using Principal Factor Method, was made on the data obtained on 37 food groups, and consequently three factors were extracted.The first factor was the amount of subsidiary food intake, the second was the habit of taking bread as one of the staple foods, the third was the quality of subsidiary food intake.(2) Both scores of first and third factors have increased for first survey to the last, and this indicates that the amount of subsidiary food intake and meat/soybean-product has increased during the last thirty years.The score of the second factor, however, has not changed and it can be mentioned that the role of rice as staple food is still important.(3) The analysis of relationship between food intake and health showed that anemia is caused not only by unbalance of nutrition but also by excess activity of daily living and that high blood pressure is associated with aging and obesity.Moreover, it is noticeable that overweight males have higher score of the first factor.