A Meta-analysis of Epidemiological Studies on the Relationship between Occupational Electromagnetic Field Exposure and the Risk of Adult Leukemia

Since the first paper by Milham et al. suggested that occupational exposure to an electromagnetic field (EMF) could increase the risk of adult leukemia, many epidemiological studies on this problem have been published. In this report the method of meta−analysis was used to summarize the results from these papers quantitatively. The combined relative risk of all leukemia (RR=1.11), as well as acute lymphocytic leukemia (RR=1.38), acute myeloid leukemia (RR=1.07) and chronic lymphocytic leukemia (RR=1.14) increased but not significantly. So far, it is difficult to make a consistent conclusion about the relationship of the occupational exposure to EMF and adult leukemia. Further carefully designed case−control and cohort studies using the more valid means of exposure assessment are required.

Study on evaluation of liver function tests. Studies on the relationship between the serum transaminase activities and the pattern of food intake / 日本農村医学会雑誌

The purpose of this study is to make clear a comprehensive relationship between serum transaminase activity and food intake pattern. A total of 146 young male student participated in the study.<BR>The results of the survey were as follows:<BR>1) The first factor (Fl) was a“animal-related food factor”. The second factor (F2) was considered to be a“rice versus noodles factor”. The third (F3), fourth (F4), fifth (F5) and sixth (F6) factor could not be explained simply in terms of their factor.<BR>2) Significantly negative correlations were observed between SGOT and the factor scores of Fl (r=-0.256, p<0.01), SGPT and the factor scores of Fl (r=-0.243, p<0.01), and SGPT and factor scores of F2 (r=-0.195, p<0.05), but not between SGOT or SGPT and other factors.

Relationship between serum OCT activity and nutrient intake pattern / 日本農村医学会雑誌

Relationship between serum OCT activity and nutrient intake pattern were investigated in 90 young adults. Applying multiple regression and factor analysis, we found the following results:<BR>1) Multiple regression analysis showed that the variables which correlated best with the serum OCT activity were dietary intakes of the energy, fat and vitamin C.<BR>2) In the factor analysis, no significant correlation was found between serum OCT and food intake pattern.