Cardiovascular disease mortality in the Americas

Area of Science:

• Epidemiology
• Public Health
• Cardiovascular Disease Research

Background:

• Mortality profiles in the Americas show significant shifts, with increasing noncommunicable diseases.
• Cardiovascular diseases (CVD) represent a major cause of death, with evolving mortality trends across subregions.

Purpose of the Study:

• To analyze changes in age-adjusted mortality rates for all cardiovascular diseases and specific conditions (ischaemic heart disease, cerebrovascular disease, hypertensive disease) in the Americas.
• To examine subregional variations and male-to-female mortality ratios for CVD.
• To investigate the relationship between initial mortality levels and the magnitude of observed changes.

Main Methods:

• Analysis of age-adjusted mortality data from selected countries in the Americas.
• Comparison of mortality trends for various cardiovascular diseases across different subregions.
• Examination of male-to-female mortality ratios and the influence of initial mortality levels.

Main Results:

• Overall age-adjusted CVD mortality is declining in 13 of 15 countries studied.
• Mortality trends for ischaemic heart disease vary, while cerebrovascular and hypertensive disease mortality generally declined.
• Declines were more pronounced in North America, Southern Cone, English-speaking Caribbean, and Andean subregions, with increases noted in Central America and Latin Caribbean.
• Male-to-female mortality ratios for CVD generally increased due to greater declines in female mortality.
• The magnitude of decline correlated with initial mortality levels; earlier declines and larger reductions occurred in countries with higher baseline rates.

Conclusions:

• Significant progress in reducing cardiovascular disease mortality is evident in many parts of the Americas, but regional disparities persist.
• Further research is needed to elucidate the determinants of these changing mortality patterns, including lifestyle, socioeconomic, and technological factors.