Abstract
Results of annual health examination of the workers in a food processing company were evaluated. This company has two factories and both factories were operated 24 hours by day and night shift workers. Health conditions of the workers in the two factories, of day and night shifts, and of various types of work were compared, and the effects of working conditions on the health conditions were examined. It was found that the working conditions had less effect on their health conditions than their home lives. Slight differences were observed only on the health conditions of the workers of day and night shift. That is, night-shift works seemed to have the high incidences of high blood pressure, and day-shift works seemed to have the high incidences of hepatopathy of male workers. This tendency of hepatophathy was not seen in female workers. These results suggest that health conditions was caused not by their working conditions but by their home lives of day-shift male workers who had higher tendency to drink after works than night-shift male workers and female workers. Incidences of diabetes, nephropathy, hyperlipemia, and anemia were not different between working conditions.
