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Seasonal changes in lung function in a farming population
A Senthilselvan1, J A Dosman, K M Semchuk
1Centre for Agricultural Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. sentil@ualberta.ca
Canadian Respiratory Journal
|September 12, 2000
Summary
Seasonal respiratory health changes were observed in a rural population. Farm residents experienced declines in lung function, unlike town residents, suggesting environmental exposures may play a role.
Area of Science:
- Environmental Health
- Pulmonology
- Rural Health
Background:
- Respiratory health can fluctuate seasonally.
- Rural populations may face unique environmental and occupational exposures.
Purpose of the Study:
- To assess seasonal variations in respiratory health.
- To investigate differences between town and farm residents in a rural setting.
Main Methods:
- Longitudinal, population-based study in southwestern Saskatchewan.
- 200 adult participants assessed in winter and summer.
- Pulmonary function measured via spirometry; questionnaires collected exposure data.
Main Results:
- Maximal midexpiratory flow rate improved for town residents, declined for farm residents.
- Forced expiratory volume in 1s/forced vital capacity improved for non-farming town residents.
- Declines observed in farming town residents and all farm residents.
Conclusions:
- Pulmonary function shows seasonal changes in this rural population.
- Observed changes may be linked to environmental or occupational exposures.
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