At the survey on October 15th, 1975, a total of 1936 patients had stayed at hospitalsfor more than five years and out of them, 1574 patients (81.3%) were followed till June, 1981. Out of 1574 patients, 501 (31.8%) were still staying at hospitals, 566 (36.0%) haddied and 498 (31.6%) were discharged from hospitals, as 48 (9.6%) died after the discharge, a total number of death reached 614 patients (39.0%.)
The death rate was higher in aged patients 41.5, in patients with positive sputumfor tubercle bacilli (53.6%), in patients with pulmonary failure (71.2%), especially inpatients both with positive tubercle bacilli and dyspnea 85.7, in advanced cases (53.9%) and in patients who had been treated by many drugs (47.6%).
Death from tuberculosis occured in 437 patients (71.2%) and 143 patients (23.3%) died of non-tuberculous diseases and 34 (5.5%) due to unknown causes. Although theproportion of death from tuberculosis was almost similar in all the age groups excepteighty years and more death due to non-tuberculous diseases increased with age, and itexceeded death from tuberculosis in the age group 80 years and more.
During the first year of follow-up study, the death rate from tuberculosis was 6.5%and that from non-tuberculous disease was 2.1%. Accumulated death rate for six yearswas 27.4% for tuberculos is, 8.8% for non-tuberculous diseases and the total death ratewas 36.2%.
Out of 498 patients who were discharged during six years, 28 patients (5.6%) showedconstantly positive sputum for tubercle bacilli and 15 patients (3.0%) discharged ocasionally tubercle bacilli.
Patients who are working or stopped treatment after the discharge were observedmore frequently among those who showed cirrotic lesions on chest X-ray and had nocomplaint of dyspnea.
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