Medical Examinations on School-Children of Oki Islands

A series of medical examinations was performed on school-children of Oki Is., Shimane Pref. in April, 1967. The investigations consisted of screening tests for acatalasemic gene carriers, ABO blood type tests, and ENT examinations. Results obtained are as follows: 1. ENT examinations and blood type tests showed average grade and value as those of other places of Japan. 2. Screening tests: Seven hypocatalasemic cases were found out among 4,831 children examined. Then, emergence of hypocatalasemia on Oki Is. was 0.15% , near to already known Japanese mean value.