Epidemiologic study on administrated 1237 lepers in Sorokdo leprosarium has been done by anther.
The ratio, nodular type to neural type and male to female, is seven to three and three to two respectively.
The signs and symptoms of nodular types and male patients are more severe than that of neural types and female patients.
01.3% of the patients are farmers and 9.73% of them have no jobs.
21-10% of the patients received the school education, 41.07% of the patients can read and write, and the rest of them are quite ignorent.
They are 35.8 years old in average and are 4.2 years younger than that of Japanese patients. The average age of females and of the neural types are less than the males and the nodular type respectively.
They are contracted in their teen alter most multiplily. 77.84% of them were, affected in eleven to thirty years old.
Their age of onset is 18.6 years in average, but the onset of .females and neural types are earlier than the males and nodular types.
51.9% of the patients were affected in spring.
Those who have been affected lasting six to ten years are most numerous and the average years of duration is 17.7 years. In females and neural types are larger than the and nodular types.
As initial symptoms, anaesthesia or hyposthesia was noted in 5g.74%, vesicle formation was noted in 19.07%. and macula noted in 6.54% the patients.
Those initial symptoms were usually found in the lower limbs (48.9%) and upper limbs(31.37%).
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