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Atopy: a predisposing factor for chronic bronchitis in Finland
E O Terho1, M Koskenvuo, J Kaprio
1Department of Clinical Allergology, University of Turku, Finland.
Journal of Epidemiology and Community Health
|June 1, 1995
Summary
Atopy and smoking are significant risk factors for chronic bronchitis. Living on a farm also increases the risk, supporting the Dutch hypothesis that atopy predisposes individuals to this respiratory condition.
Area of Science:
- Respiratory Medicine
- Epidemiology
- Environmental Health
Background:
- Chronic bronchitis is a significant public health concern.
- Understanding its etiological factors is crucial for prevention and management.
- Previous research suggests a link between atopy and smoking in chronic bronchitis development.
Purpose of the Study:
- To investigate the predictive value of atopy, smoking, and farm environment exposure in the development of chronic bronchitis.
- To examine the association between these factors and both prevalent and incident chronic bronchitis cases.
Main Methods:
- Cross-sectional and longitudinal study design.
- Utilized postal surveys from the Finnish twin cohort study (1975 and 1981).
- Included a large sample size with prevalent and incident cases of chronic bronchitis.
Main Results:
- Cross-sectional analysis showed associations between chronic bronchitis and atopy (RR 1.41) and smoking (RR 2.43).
- Longitudinal analysis revealed chronic bronchitis was related to atopy (RR 1.28), smoking (RR 2.31), and farming (RR 1.45).
Conclusions:
- Smoking and atopy are confirmed predisposing factors for chronic bronchitis.
- A farm environment is also identified as a risk factor.
- Findings support the Dutch hypothesis, highlighting atopy's role in chronic bronchitis etiology.