STATISTICAL ANALYSIS OF THE ORGAN WEIGHTS IN 1,000 AUTOPSY CASES OF JAPANESE AGED OVER 60 YEARS

摘要: For practical use in comparing organ weights of autopsy cases the aged, and also for evaluating gerontological parameters during human senescence, a method weight standardization was introduced. In used this study, Gaussian distribution applied to main peak that appeared each weights. The best fitted even elderly when large number accumulated. smaller adopted cardiac which showed double because clinicopathological analysis define background revealed larger essentially represented by hypertensive hearts. By using data from standardized values as well those arithmetic means individual ratio, following were obtained: ratio body, body brain. these parameters, comparison ratios obtained with other procedures age-related change most reasonably smooth seemed be less exaggerated pathological changes. cases, changes due geriatric disorders are difficult distinguish ordinary physiological changes, makes estimation "normal values" aged problematical. present however, represent mass ecological may applicable comprehensive pathology studies.