Geographical variation of mortality from cardiovascular diseases. The Project 'Myocardial Infarction in mid-Sweden'

Area of Science:

• Public Health
• Epidemiology
• Cardiovascular Research

Background:

• Geographical variations in mortality rates can indicate underlying environmental or lifestyle factors.
• Understanding regional disparities in cardiovascular disease (CVD) mortality is crucial for targeted public health interventions.

Purpose of the Study:

• To investigate geographical variations in mortality rates across mid-Sweden.
• To analyze differences in mortality from all causes, cardiovascular diseases, and non-cardiovascular diseases by region.

Main Methods:

• Utilized mortality data from 76 communities in mid-Sweden for men and women aged 45-74.
• Data included all-cause, cardiovascular, cerebrovascular, ischaemic heart disease (IHD), and non-cardiovascular mortality.
• Age standardization was applied to account for differences in population age structures.

Main Results:

• Mortality from all causes and cardiovascular diseases was significantly higher in western communities compared to eastern ones.
• No systematic differences in non-cardiovascular mortality were found between regions.
• Excess mortality rates for IHD and stroke were notably higher in specific western counties for both men and women.

Conclusions:

• Significant geographical disparities in cardiovascular and overall mortality exist within mid-Sweden.
• The observed variations are not attributable to age distribution, registration differences, or case fatality rates.
• Further research is needed to identify the unknown causes of these regional mortality differences.