Abstract
The conditions of mortality of 572 patients, from 1941 to 1954, divided in three periods, during the War (1942-1945), after the War (1946-1950) and in the improving period of social conditions (l95-1954) and the present conditions of 658 in-patients (on Dec. 1954) were investigated.
1) The frequency of infection was high in puberty in the female and after puberty in the male. The ratio of the male to the female was 2.09:1.
2) The period from the outset of the disease to the death was 630 years in most patients (79.8). Death was most frequent at ages between 30 and 50 years old.
3) The average life was shortened temporarily during the War and prolonged at present (51 years old in the male and 55 years old in the female), which is in accordance with the average life of the Japanese in 1948, but still shorter by 10 years than the general Japanese people.
4) The decrease of mortality is striking in the turns of during the War, after the War and in the recent times.
5) Pulmonary tuberculosis is a remarkable cause of death in most patients, but the frequency is decreasing by years, while chronic nephritis has a tendency to increase.
