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. 2015 Sep 4:15:45.
doi: 10.1186/s12902-015-0042-1.

Mortality rates and the causes of death related to diabetes mellitus in Shanghai Songjiang District: an 11-year retrospective analysis of death certificates

Meiying Zhu  1 , Jiang Li  2 , Zhiyuan Li  1 , Wei Luo  1 , Dajun Dai  3 , Scott R Weaver  4 , Christine Stauber  4 , Ruiyan Luo  4 , Hua Fu  1
Affiliations

Mortality rates and the causes of death related to diabetes mellitus in Shanghai Songjiang District: an 11-year retrospective analysis of death certificates

Meiying Zhu et al. BMC Endocr Disord. .

Abstract

Background: China is one of the countries with the highest prevalence of diabetes in the world. We analysed all the death certificates mentioning diabetes from 2002 to 2012 in Songjiang District of Shanghai to estimate morality rates and examine cause of death patterns.

Methods: Mortality data of 2654 diabetics were collected from the database of local CDC. The data set comprises all causes of death, contributing causes and the underlying cause, thereby the mortality rates of diabetes and its specified complications were analysed.

Results: The leading underlying causes of death were various cardiovascular diseases (CVD), which collectively accounted for about 30% of the collected death certificates. Diabetes was determined as the underlying cause of death on 28.7%. The trends in mortality showed that the diabetes related death rate increased about 1.78 fold in the total population during the 11-year period, and the death rate of diabetes and CVD comorbidity increased 2.66 fold. In all the diabetes related deaths, the proportion of people dying of ischaemic heart disease or cerebrovascular disease increased from 18.0% in 2002 to 30.5% in 2012. But the proportions attributed directly to diabetes showed a downtrend, from 46.7-22.0%.

Conclusions: The increasing diabetes related mortality could be chiefly due to the expanding prevalence of CVD, but has nothing to do with diabetes as the underlying cause. Policy makers should pay more attention to primary prevention of diabetes and on the prevention of cardiovascular complications to reduce the burden of diabetes on survival.

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Figures

Fig. 1
Fig. 1
The distribution of diabetes specified complications in the decedents with diabetes as underlying cause of death in 11 years
Fig. 2
Fig. 2
Changing patterns in crude death rates from 2002 to 2012. The denominators are the average total population in Songjiang District for every year
Fig. 3
Fig. 3
Changing patterns in proportions of the underlying cause of death for diabetes, cardiovascular diseases, and diabetes without complications. The denominators are the number of diabetes related deaths for every year
See this image and copyright information in PMC

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