Abstract
Factories of food processing company run day and night all days a year. Most of the workers are paid by work-time bases. Health conditions and life habits of these workers were analyzed by questionnaires at the time of annual physical health examinations. Workers were classified into groups; day and night workers, male and female, ages below and over 35 years, and types of work (administration, cooking, packing, distribution, production control, and quality control) . The results from these groups were compared. The results from three independent factories were also compared.
951 sheets of questionnaires were collected from three factories. Collection rate was 83%. Physical and metal tiredness which were classified into two steps; tired or not tired were statistically no significant differences in most of the groups and three factories. 65% of workers felt physical tiredness and 28% of them felt no physical tiredness. 58% of them felt mental tiredness and 34% of them felt no mental tiredness. 53% felt stress in works and 34% felt no stress. Causes of stress were high in the order of human relations, qualities of works and quantities of works. Rate who felt stress by human relations was higher in woman than man. Rate who felt stress by qualities and quantities of work was higher in ages below 35 years than in ages over 35 years. Health conditions classified into two steps were not statistically different. 75% of workers were healthy and 14% of them were unhealthy. 20% of them had misgivings about future health and 75% had not. Diseases under treatment were higher in the order of hypertension, hyperlipemia, and diabetes. 59% were found to be no smoker, 56% were no drinker, and 75% did not any physical practice. But most of them were found to sleep about 6 hours. These results were compared to the similar results made by the Ministry of Labor in 1997.
