Abstract:
The results of 5 year (1985.6—1990.6) logitudinal survey of 288 cases of long-lived subjects were reported. Cumulative survival rate of 5 year was 22.2% The causes of death in turn were cardiovascular disease, pulmonary infection and cerebrovascular disease. As regards to immunological function, there was no significant change in humoral immunity while the cellular immunity was notably reduced. The prevalence rate of chronic bronchitis, pulmonary emphysema, senile dementia, fracture of femoral neck and incontinence of urine was increased from 42.2%, 42.2%, 4.7%, 4.7% and 3.1% to 68.8%, 68.8%, 15.6%, 14.1% and 7.8% respectively. The factors of longevity and measures of health care were discussed.