Cerebrovascular disease type specific mortality: 1968-1977

Area of Science:

• Neurology
• Public Health
• Epidemiology

Background:

• Cerebrovascular diseases represent a significant cause of mortality and morbidity globally.
• Understanding trends in cerebrovascular disease mortality is crucial for public health interventions.
• Previous studies have indicated variations in stroke mortality across different demographic groups.

Purpose of the Study:

• To analyze trends in cerebrovascular disease death rates in the United States between 1968 and 1977.
• To investigate these trends by specific types of cerebrovascular events and demographic subgroups.
• To examine the role of hypertension in cerebrovascular disease mortality during this period.

Main Methods:

• Retrospective analysis of death certificate data in the United States from 1968 to 1977.
• Stratification of cerebrovascular disease mortality rates by event type (e.g., hemorrhagic stroke) and demographic factors (e.g., race).
• Examination of data related to hypertension and its potential influence on mortality statistics.

Main Results:

• Significant declines observed in overall cerebrovascular disease death rates.
• Largest reductions in mortality were noted for hemorrhagic strokes (45% decrease in deaths, 53% decrease in age-adjusted rate).
• Substantial declines in cerebrovascular disease mortality were also observed among nonwhite populations (18% decrease in deaths, 36% decrease in age-adjusted rate).
• A surprising 17% increase in cerebrovascular deaths reported as poorly defined was observed.
• Hypertension data analysis suggested potential artifactual influences on mortality results.

Conclusions:

• Cerebrovascular disease mortality, especially hemorrhagic strokes and among nonwhites, experienced notable declines in the US during 1968-1977.
• The rise in poorly defined cerebrovascular deaths necessitates improved diagnostic accuracy and reporting.
• Further clinical studies are required to clarify the relationship between hypertension and cerebrovascular disease mortality, considering potential data artifacts.