Abstract
1. The annual tuberculosis morbidity has not changed in general both in males and females, the male morbidity always being somewhat higher than that of female. However, the morbidity of the youth has decreased while that of the children and of the old has increased on the contrary. This change in the morbidity was more manifest in males than in females.
2. The tuberculosis mortality has decreased year after year in both sexes. In the year 1952, it reduced to the half of the year 1949. In the year 1951, the mortality from tuberculosis was the top among the death causes (international classification of the main causes of death) and it reduced to the fourth in the year 1952. The mortality increased gradually in the old ages while it decreased in the younger ages and especially in the youth. This change in the mortality was more distinct in males than in females and it was higher in the former than the latter.
3. In regard to the termination of tuberculosis patients, those who left the sanatoriums or the hospitals because of the complete or the moderate restoration, increased year after year, on the contrary, those who remained unchanged, became worse or died, decreased. The mortality reduced to half of the past years.
4. As for the tuberculin test, there was an increase of approximately 15% or more positive people in the recent 4 years. The positive rate has increased gradually in the younger age group especially in babies and children perhaps because of the BCG vaccination. On the contrary, the positive people decreased in the declined ages.
5. The number of the tuberculosis patients discovered by the mass examination increased a little in the ages from 5 to 24 years and decreased in the other ages, especially in babies and in the declined ages. The rate of the discovery of tuberculosis patients by the examination, however, slightly increased in the year 1949 from the year 1952.
