Cholelithiasis in Hakodate District

概要

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As a part of an epidemiologic survey of cholelithiasis in northern Japan, 423 cases of this disease treated during 1964-1972 at five hospitals in Hakodate District, southern Hokkaido, were reviewed and analyzed. The results were as follows.1) In this particular series a time trend study did not indicate a decrease in the relative incidence of calcium bilirubinate stones.2) Cholesterol stones were commoner than calcium bilirubinate stones in Hakodate District as a whole. In urban Hakodate cholesterol stones were overwhelmingly common, but in rural areas both varieties were comparable to each other in incidence.3) Age distribution analysis disclosed that in this series calcium bilirubinate stones were more closely associated with aged patients than cholesterol stones.4) It was elucidated by comparison of this series with previous statistics that aged cases of cholelithiasis were increasing in number and that the age distribution of this disease was undergoing a considerable change partly because of a tendency for calcium bilirubinate stones to decrease in incidence.
財団法人日本消化器病学会の論文