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[Time trends and age-related characteristics of cardio-cerebrovascular deaths in Hunan]
Hui Ming1, Hui-biao Xiang, Min-zhu Huang
1Public Health School of Central-south University, Changsha, China.
Insights
Cardiocerebrovascular disease (CVD) mortality increased in Hunan, China, from 1973-2005, particularly affecting those over 60. Analysis also revealed concerning CVD deaths in younger populations aged 15-19.
Area of Science:
- Epidemiology
- Public Health
- Gerontology
Context:
- Cardiocerebrovascular diseases (CVD) pose a significant global health challenge.
- Understanding temporal and age-related trends in CVD mortality is crucial for targeted interventions.
- Hunan, China, provides a specific regional context for examining these disease patterns.
Purpose:
- To investigate the time trends and age-specific characteristics of CVD mortality and disease burden in Hunan, China.
- To analyze changes over three distinct periods: 1973-1975, 1990-1992, and 2004-2005.
- To identify specific age groups most affected by CVD mortality.
Summary:
- Standard all-cause mortality decreased, but CVD mortality significantly increased in Hunan between 1973 and 2005.
- Age-specific CVD mortality rates rose with age, with the highest burden observed in individuals over 60.
- Distinct age groups, including 15-19 year olds, showed accelerated mortality increase rates during specific periods.
Impact:
- The findings highlight an increasing threat of CVD with time and aging in Hunan.
- The study identifies older adults (60+) as the primary demographic at risk.
- The unexpected rise in CVD deaths among 15-19 year olds warrants further investigation and targeted public health strategies.
Objective:
To investigate the time trends and age-related characteristics of mortality and disease burden for cardiocerebrovascular diseases (CVD) in Hunan, China during three periods (1973-1975, 1990-1992 and 2004-2005).
Methods:
The cardiocerebrovascular death data of Hunan residents were collected by three national retrospective sample surveys of death. Cause-specific mortality, proportion, years of potential life lost (YPLL) and associated indicators were identified in the population of Hunan in above mentioned three periods. Time trends of age-specific mortality rate were assessed by fitting curvilinear regression lines and the increase rates of mortality with age were analyzed in each period.
Results:
The standard all-cause mortality of residents in Hunan decreased (chi2 = 189.947, P < 0.001, chi2 = 54.201, P < 0.001; chi2 = 27,396.898, P < 0.001) while the standard mortality for CVD increased (chi2 = 54.201, P < 0.001; chi2 = 27,396.898, P < 0.001) from 1973 to 2005. The age-specific mortality rate for CVD increased with age in all three periods, especially for citizens older than 60 years. There were age stages in each period in which the mortality increase rate was the fastest (10-14 and 15-19 years old in 1973-1975; 10-14, 15-19 and over 80 years old in 1990-1992; 15-19 and over 80 years old in 2004-2005). Exponential regression function (y = b0e(b1x)) can be used for the proper description of age-specific mortality change. The ratio of YPLL for CVD in all death causes showed increase trend (chi2 = 275,630.407, P < 0.001). YPLL rate (YPLLs per 1000) in 1973-1975 was higher than those in 1990-1992 and 2004-2005. YPLL rate was positively correlated with mortality in all periods.
Conclusions:
The mortality for CVD increased with time and aging. People older than 60 years were threatened by CVD mostly. Mortality trend analysis also found higher CVD deaths in people age 15-19 in Hunan residents.
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