| Objective: To analyze the main causes of death and the characteristics of senile type 2 diabetics inpatiens in Jilin area.Materials and methods: we colleted all of the materials of type 2 diabetic patients who died during 2000 and 2005 hospitals as follow: second hospital of Jilin university,the Changchun 208 hospital,the Jilin central hospital,the Jilin second central hospital,the hospital of Yanbian university,the Yanji hospital,the Tonghua centeral hospital, the Tonghua peoples' hospital, the Baicheng hospital and the Nongan hospital. According to the age they were divided into the old age group and non-old age group and the detailed statistics investigation review were carried on. Information including demographics,history,results of laboratory tests and cause of death were recorded in desingned form, and all were data analyzed by Epidate2.0 and SPSS10.0.Results: There are totally 14835 in-patients and 602 death cases suffered form type 2 diabetic duiring 2000-2005 in 10 hospitals. The mortality is 5.47% and it has been consistent in the past 5 years. Among the 602 died diabetic inpatients includes 324 male and 278 females, and the mortality is similar both in males and females(p>0.05). The death age is between 60 and 97, with a mean age of 72.04±6.67 Control group includes 152 patients(M 80,F 72),death age is between 16 and 59, with a mean age of 49.11±8.06.The main causes of death are chronic complication (cerebrovascular disease,angiocardiopathy,renal failure) tumors and infections. It is shown that in non-old age group ketoacidosi,cerebrovascular disease,angiocardiopathy,renal failure,tumor and infection are most common. The causes of death are similar both in old-age set and non-old-age male set group (p>0.05). The cause of death are significantly different between the old-age female group and non-old-age female group (p﹤0.01).1) Chronic complications: It is the main cause of death in old age group, including 270 patients suttered from chrouil complications, account for 60.00 %.Among them are cerebrovascular disease119(ischemia81,hemorrhage 38),account for 26.44%; angiocardiopathy 94, account for 20.89 %, renal failure 57,accountfor12.67%.There is significant difference between the constituent ratio of cerebrovascular disease and angiocardiopathy (P<0.05). In non-old age group, there are 67 patients died of chronic complication, account for 44.08%, cerebrovascular disease there are 27, account for 17.76%; angiocardiopathy 23, account for 15.13%, renal failure17, accountfor 11.18 %. There isn't remarkable difference between the constituent ratio of cerebrovascular disease and angiocardiopathy (P>0.05). Death rate due to chronic complication has increased because of age(P<0.05),except that due so renal failure(P>0.05).2)Tumors: In the old age group the tumor is also one of main causes of death, only inferior to the chronic complication. The incidence of tumor is significantly different between the old age group and non-old age group (P<0.05). In the old age group there are 45 patients died of tumor, account for 45%, in which there are 25 lung cancer,11 abdominal cancer,5 leukemia ,other types 5. In the non-old age group 11 patients die of the tumor,accounts for 7.23 %,in which there are 5 leukemia, 2 liver cancer, 2 lung cancer, 2 brain tumor.3)Infections: In the old age group 42 patients died of infections, account for 9.33%, while 11 patients are in the non-old age group, and the infection rate is similar in both group. In the old age group 30 patients got lung infection(M 24), account for 71.43%; lower limb gangrene 4, other parts 7. In the non-old age group there are 7 patients got lung infection and other parts 7.4)Acute complications: There are 45 patients died of acute complication (ketoacidosis 19, hyperosmolar nonketotic diabetic coma 26), account for10.00%. In the non-old age group (ketoacidosis 34, hyperosmolar nonketotic diabetic coma 4), account for 25.00%,The incidence in old age group is lower than that in the non-old age group. Especially to the ketoacidosis, there are only 19 patients in old age group, account for 4.22%; whereas there are 34 patients in non-old age group, account for 22.37%. There is significant difference between the old age group and non-old age group (P<0.05).2.3 The complication of death patients1)Blood pressure: 241 patients affiliate hypertension in old age group, account for 53.55%. In the angiocomplication patients(270) there are 203 patients affiliating hypertension, reaching 75.18%; while there are 55 patients in non-old age group, account for 36.18%, there is significant difference between the two groups (P<0.05).2)Blood fat: 282 patients affiliate hyperlipoidemia in old age group, account for 62.67%. In the angiocomplication patients (270) there are 219 patients affiliating hypertension, reaching 81.11%; while there are 62 patients in non-old age group affiliating derangement of lipid metabolism, account for 40.79%, there is significant different between the two groups (P <0.05).3)There are 259 patients with cerebrovascular disease complications in total, 221 in old age group, while 38 in non-old age group; 318 patients with angiocardiopathy complications, 268 in old age group, while 50 in non-old age group; and 221 patients with diabetic nephropathy, 198 in old age group, while 23 in non-old age group.2.4Glycopenia: The number of patients with hypoglycemic coma in old age group is 17(3.78%), in which, there are 7 patients affiliated final stage diabetic nephropathy at the same time, whereas there are 8 patients in non-old age group. There is significant difference between the two groups (P<0.05).2.5 Sex: The ratio of causes of death in old-age female and non-old-age female set were noe similar. The main complications in former group arecerebrovascular diseases,cerebral vascular diseases and renal vascurlar disesases, whereas diabetic ketoacidosis is the main complication in later group (p<0.01).The main complications in old-age male and non-old-age male group were chronic complications such as cerebrovascular diseases (p>0.05).It is shown that in non-old age group ketoacidosis,cerebrovascular disease,angiocardiopathy,renal failure,tumor and infection are most common. The criticality of reducing the mortality are prevention and treatment of cerebrovascular disease,angiocardiopathy and renal vascular diseases. But also should pay attention to prevent infection,strictly controlling blood glucose,blood pressure and blood fat in order to decrease the mortality of diabetics.
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