[Relationship between subjective cognition and observed life-style in nursing students]

Complex interactions between long-standing lifestyles and genetic factors are strongly involved in the pathologenesis of adult diseases or chronic degenerative diseases. We usually use a questionnaire to obtain life-style information from subjects in a health survey. However, the response to questionnaires is a subjective recognition, therefore, it does not always precisely correspond to the actual situation. The purpose of this research is to compare the response to the questionnaire about life-styles with facts that can be objectively observed. Furthermore, each aspect of life-styles was examined on a mutual influence grade. The subjects were ninety-eight nursing college students aged from 18 to 23 years old, in good health. Subjective symptoms and daily life practices were investigated by a 15-item questionnaire, as the first step. Therefore, we asked them to record their behavior on a time chart, everyday for ten days. Seven days of serial records were obtained from sixty-four subjects (65.3% of 98 persons). 1) The response "yes" to the questionnaire "Do you sleep well?" and "Do you fall asleep, easily?" was influenced by the hours of sleep, rather than what time the subjects "go-to-bed" or "get-up". The response to "Do you wake up often during the night?" expressed an actual situation, well. 2) For subjective cognition regarding excretion, the answer for "constipation" was associated with the number of defecation per week, though the answer for "diarrhea" was not. 3) The answer to "Do you eat breakfast?" reflected the actual situation. However, the answer for "Do you eat between meals?" did not express the actual situation, that is, even the subjects who answered "occasionally" or "I don't eat between meals" had eaten between meals 6.1 times per week, on average. 4) There were mutual influences among sleeping, eating breakfast and excretion.