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Respiratory symptoms and long-term cardiovascular mortality
Anne Frostad1, Vidar Soyseth, Tor Haldorsen
1Cancer Registry of Norway, N-0310 Oslo, Norway. anne.frostad@online.no
Respiratory Medicine
|August 8, 2007
Summary
Respiratory symptoms significantly increase the risk of death from ischaemic heart disease (IHD) over 30 years. The link between respiratory issues and stroke mortality is weaker, especially in the long term.
Area of Science:
- Cardiovascular epidemiology
- Respiratory medicine
- Public health
Background:
- Investigating the long-term impact of respiratory symptoms on cardiovascular mortality is crucial for public health.
- Previous studies have suggested a link, but long-term population data are limited.
Purpose of the Study:
- To examine the association between respiratory symptoms and 30-year mortality from ischaemic heart disease (IHD) and stroke.
- To assess the dose-response relationship and gender-specific risks.
Main Methods:
- A cohort of 19,998 individuals aged 15-70 in Oslo underwent a respiratory survey in 1972.
- Respiratory symptoms were categorized and scored; mortality data were collected over 30 years.
- Statistical analysis adjusted for age, occupational exposure, and smoking habits.
Main Results:
- A significant, dose-response association was found between respiratory symptoms and IHD mortality in both men and women.
- Hazard ratios for IHD mortality ranged from 1.3 to 3.0 in men and 1.2 to 1.9 in women.
- The association with stroke mortality was significant only for severe dyspnoea in men and moderate dyspnoea in women.
Conclusions:
- Respiratory symptoms are a significant predictor of long-term IHD mortality.
- The association between respiratory symptoms and stroke mortality is weaker and less consistent.
- Findings highlight the importance of respiratory health in cardiovascular disease prevention.
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