Abstract
In the case of evaluation of health check-up results, it is common to set the criteria of abnormality accoridng to the population distribution. However, the normal range of lab-data of individual person is usually narrower than that of population data. In this article, the authors have evaluated the chrnological chenges of health check-up data in order to evaluate the possibility of "personally set criteria of abnormality". The used data was those of individuals who have received health check-up all year from 1995 to 1999 consecutively in an Occupational health institute. Total number of persons included into the analysis was 97,945 (Male 65,159, Female 22786). The larger means of CV were observed for Triglyceride, GOT, GPT, gamma-GTP. The smaller means of CV were observed for BMI, SBP, DBP, Total-cholesterol, Ureic acid, Fasting Blood Sugar (FBS) and Hemoglobin (Hb). The present results indicated that one has to pay enough attention to evaluate a cross-sectional data for most of health check-up items excluding blood pressure and BMI because of its chronological variability.
