Abstract
In search of recent trend of local morbidity statistics, the published data on medical care covered by National Health Insurance for May, 1974 were analyzed and compared. The principal index was patient rate (consultation and hospitalization including) by each community. An observation revealed the following :
1. An average patient rates per 1, 000 insuranced were 48.29 for hypertensive diseases, 4.66 for ishemic heart diseases, and 17.724 for cerebro-vascular diseases.
2. Regional differences in patient rates for hypertensive diseases were observed, high in the northern and western region of the prefecture. Prevalence of ishemic heart diseases was noted in the central urban region around Maebashi, Takasaki cities, and the north-eastern portion around Numata city. On the contrary, prevalence of cerebro-vascular diseases was eminent around Mountain Akagi and Haruna, and in the lesser degree, on Isezaki city area.
3. Prevalence rate by category, of each community was studied by rank correlation coefficient with following findings : negative correlation between hypertensive and cardio-vascular diseases : positive correlation was revealed between ishemic heart diseases and cerebro-vascular diseases. As a reference, an interesting finding was a positive correlation between peptic ulcer and ishemic heart diseases.
