We analyzed the causes of death in 74 non-insulin-dependent diabetes mellitus (NIDDM) patients who died in Koseiren Takaoka hospital between 1982 and 1988 and compared with 334 non-diabetic dead patients.
The first cause of death in NIDDM was malignant neoplsma (35.1% of NIDDM). The second was ischemic heart disease (17.6%). The third was infection (12.2%). The ratios of cerebral infarction and diabetic nephropathy were 9.5% each. The ratios of ischemic heart disease and cerebral infarction in diabetics were twice those in non-diabetics. The tratio of uremia in diabetics wassix-fold. In patients over 61 years old, the ratios of ischemic heart disease and diabetic nephropathy were large. Nevertheless, in patients under 60 years old, the proportion of cerebral infarction was higher. The proportions of cerebral infarction and ischemic heart disease were higher in the group of long diabetic duration than in group of short duration.
Compared with past Japanese reports, the proportions of malignant neoplasma and ischemic heart disease in diabetics increased and the proportions of diabetic nephropathy and coma decreased.
This study concluded that not only the control of diabetes mellitus but also the examination of malignant neoplasma was important in management of diabetes mellitus. The proportion of the causes of death in diabetics will change with changes of the circumstances and the progress of medical treatment.