Abstract:
Objective To analyze the characteristics and trends of injury-related deaths among the registered residents in Yuyao City, Zhejiang Province from 2014 to 2023, and to provide a scientific basis for the formulation of targeted injury prevention and control strategies.
Methods Data on injury-related deaths in Yuyao City from January 1, 2014 to December 31, 2023 were collected from the cause-of-death surveillance module of the chronic disease monitoring and management system of Zhejiang Province. Indicators including constituent ratio, crude mortality rate (CMR), standardized mortality rate (SMR), premature death probability, potential years of life lost (PYLL), average years of life lost (AYLL), and potential years of life lost rate (PYLLR) were calculated. The average annual percentage change (AAPC) was used to analyze the trends in injury mortality over the past 10-year period.
Results From 2014 to 2023, a total of 6 625 injury-related deaths were reported in Yuyao City, accounting for 10.65% of all deaths and ranking fourth among all causes. The CMR was 79.34/100 000 and showed an increasing trend (AAPC=4.396%, t=2.875, P=0.021), while the SMR was 38.99/100 000 with no significant trend (AAPC=-0.585%, t=-0.451, P=0.664). The SMR of females (37.74/100 000) was lower than that of males (40.87/100 000) (χ2=12.468, P<0.001). The top 5 causes of injury-related death were falls, traffic accidents, drowning, suicide, and accidental suffocation. Over the 10-year period, the SMRs for traffic accidents, drowning, and suicide showed downward trends (AAPC=-5.381%, t=-3.428, P=0.009; AAPC=-8.061%, t=-6.924, P<0.001; AAPC=-6.919%, t=-4.039, P=0.004, respectively), while the SMRs for falls and accidental suffocation showed no significant trends (AAPC=3.417%, t=1.767, P=0.115; AAPC=2.228%, t=0.803, P=0.445). Injury mortality increased with age for males, females, and the total population (all P<0.05). The leading causes of injury-related death were drowning among residents aged 0‒<15 years, traffic accidents among those aged 15‒<45 and 45‒<65 years, and falls among those aged 65‒<85 and 85‒110 years. The total PYLL due to injury was 58 708.00 person-years, the AYLL was 21.23 years, and the PYLLR was 7.36‰.
Conclusion From 2014 to 2023, the crude mortality rate due to injuries in Yuyao City remained at a relatively high level, posing a serious threat to residents’ health and well-being. Falls, traffic accidents, drowning, suicide, and accidental suffocation are key targets for injury prevention and control work.