[Clinico-statistical study of inpatients and autopsied cases in our clinic].

The statistics of clinical observation at Department of Internal Medicine, Nippon Dental University at Niigata from July 1981 to December 1987 (duration 6.5 years) were as follows: Total number of inpatients: 1,238, Total number of death cases: 106. Findings include: 1) Ratio of male patients to female patients 1.34:1.00. Male deceased patients to female deceased patients 1.52:1.00. 2) Average patients number hospitalized per year was 200. The high percentaged of certain advanced aged groups was reflected by the recent demographic changes in the society in general.; in their 60's 46.0%, in their 70's 24.3%, in their 80's 6.7%. In these age groups, female number is tendency to increase the number of male. 3) The diseases of inpatients were mostly due to the digestive tract, which accounted for 60.4% of the total. Of this percentage, 65% was due to hepato-biliary diseases. 4) The death statistics of malignant tumor was 68.9%; Benign diseases being 31.1%. Male patients died from hepatocellar carcinoma, lung cancer, colon cancer and stomach cancer, in descending order. Females died from cancer of the biliary tract, stomach cancer and hepatocellular carcinoma, again, in descending order. 5) 71.7% of all deaths were caused by the digestive tract, in particular, hepatocellular carcinoma, cancer of the biliary tract, liver cirrhosis and primary biliary cirrhosis, all belonging primarily to the hepato-biliary disease group. 6) As a result of 58 autopsies performed for 106 death cases, 32 cases had complete autopsies and 26 cases had partial organ punctures.