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Age-period-cohort Analysis of Cardiovascular Disease Mortality in Japan, 1995-2018
1Medical Information Center, Kyusyu University Hospital, Fukuoka, Japan.
Insights
Mortality from heart disease (HD), ischemic heart disease (IHD), and cerebrovascular disease (CeVD) decreased over time. However, younger women show increasing cohort effects for IHD and CeVD, necessitating targeted prevention strategies.
Area of Science:
- Epidemiology
- Public Health
- Biostatistics
Background:
- Cardiovascular diseases, including heart disease (HD), ischemic heart disease (IHD), and cerebrovascular disease (CeVD), remain significant causes of mortality globally.
- Understanding the demographic and temporal trends in mortality rates is crucial for effective public health interventions.
Purpose of the Study:
- To analyze mortality trends for HD, IHD, and CeVD in Japan using age-period-cohort (APC) analysis.
- To identify specific age, period, and cohort effects influencing cardiovascular disease mortality.
Main Methods:
- Utilized Japanese Vital Statistics data on cardiovascular disease mortality from 1995 to 2018.
- Employed Bayesian APC analysis to decompose mortality rate changes into age, period, and cohort effects.
- Defined age groups in 5-year increments and cohorts with a 1-year shift.
Main Results:
- Period effects for all studied diseases showed a decreasing trend for both men and women.
- Men born between the 1940s and 1970s exhibited increasing cohort effects for cardiovascular diseases.
- While HD cohort effects decreased for those born in the 1970s or later, IHD and CeVD showed increasing cohort effects in younger generations of women (born post-1960s).
Conclusions:
- Increasing cohort effects for IHD and CeVD in younger women highlight a growing concern.
- This trend underscores the urgent need for tailored preventive strategies and public health initiatives focused on women's cardiovascular health.
Objectives:
This study aimed to analyze the mortality of heart disease (HD), ischemic heart disease (IHD), and cerebrovascular disease (CeVD) through an age-period-cohort (APC) analysis.
Methods:
We used data on mortality due to cardiovascular disease from 1995 to 2018 in Japan, as determined by Vital Statistics. Age groups from 0 years to 99 years were defined by 5-year increments, and cohorts were defined for each age group of each year with a 1-year shift. We used Bayesian APC analysis to decompose the changes in the diseases' mortality rates into age, period, and cohort effects.
Results:
The period effects for all diseases decreased during the analyzed periods for both men and women. The cohort effects for men increased substantially in cohorts born from around 1940 to the 1970s for all types of cardiovascular diseases. The cohort effects of HD decreased in the cohorts born in the 1970s or later for both men and women. Regarding IHD and CeVD, either a non-increase or decrease of cohort effects was confirmed for cohorts born in the 1970s or later for men, but the effects for women showed a continuously increasing trend in the cohorts born in the 1960s or later.
Conclusions:
The cohort effects for IHD and CeVD showed increasing trends in younger generations of women. This suggests that preventive approaches against cardiovascular diseases are needed, particularly for women.
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