Abstract
Relations between population changes and health indicators were analyzed from 1920 to 1970 on every census. In this paper, population changes were shown by two indices; percentage of workers engaged in primary industries and ratio of aged population 65 and overr to adults aged 15-64 . Though each prefecture has been in its own course of population change, there has been clearly recognized a tendency toward uniform population change after World War II. Among seven health indicators discussed here, crude death rate, mean expectation of life and proportional mortality indicator (P . M. I.) which have been assumed to be comprehensive health indicators have a state relationship to population changes after World War II. This indicates that age structure of population may definitely regulate the pattern of death rates but f ut further considerations are necessary about factors affecting changes of patteren of death rates from Meiji era with special reference to prefectural differences of industrialization.
