In Japan, the death rate of males is higher than that of females in respect of most kinds of daily accidents. Social factors such as gender roles influence the gender differences in the mortality rate. Through this research we try to evince the relation between social factors and the gender differences, based on a comparison of Japan with England and Wales. As a result, the gender differences of daily accidents in Japan are larger. On the other hand, social backgrounds are different in both countries. We believe that there is a strong relationship between the gender differences of casualties and gender roles.
