Abstract:

Objective To analyze main causes of death and potential life lost in Chongqing permanent residents in 2013, understand characteristics of death causes and provide reference evidence for developing reasonable health prevention and control measures. Methods The data of death causes in Chongqing permanent residents in 2013 were classified according to the International Classification of Diseases (ICD-10) and statistically analyzed with death cause analysis software DeathReg 2005 and SPSS 13.0. Characteristics of death causes in Chongqing permanent residents were described by mortality, constituent ratio of death cause, ranking of death cause, potential years of life lost (PYLL) and average years of life lost (AYLL). Results The mortality was 671.08 per 100 000 people in 2013. Standardized mortality was 475.72 per 100 000 people and the mortality was higher in males than in females (χ²=8 128.081，P=0.000). The top 5 death causes were circular system diseases, tumors, respiratory system diseases, injuries and poisoning, and digestive system diseases. Rankings of different death causes were different (χ²=3 562.187, P=0.000). These 5 death causes accounted for 92.88% of all deaths Deaths caused by lung cancer accounted for 47.01% of all tumorcaused deaths, which was more than the national average level in 2012. Death cause rankings in different age groups were different. Potential life lost analysis showed that tumors, injuries and poisoning, circulatory system diseases, respiratory diseases and digestive system diseases were top 5 causes for early death in residents. Conclusion In  2013, main death causes in Chongqing permanent residents are chronic noninfectious diseases such as tumors and circulatory system diseases. Injuries and poisoning and especially traffic accidents are main death causes in children and young adults. Disease control and prevention strategies should be developed according to different death cause characteristics in Chongqing residents.

Key words: mortality, rank of death cause, potential years of life lost