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Lung Function Decline in Farm and Nonfarm Rural Residents of Saskatchewan
Luan M Chu1, Chandima P Karunanayake, James A Dosman
1Canadian Centre for Health and Safety in Agriculture, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK, Canada, S7N 2Z4 (Mr LMC, Dr CPK, Dr JAD, Dr PP); Department of Community Health and Epidemiology, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK, Canada, S7N 2Z4 (Dr PP).
Objective:
This study aims to assess the annual changes in lung function among farm and nonfarm adult residences in rural Saskatchewan, Canada.
Methods:
Data from the Saskatchewan Rural Health Study survey (2010 to 2014) among 724 adults were used.
Results:
For forced expiratory volume in 1 second (FEV1) measurements, estimates of annual decline (in milliliters) were highest in older age male (65+ years) (Mean, SD) (-42.63, 21.16); and among old heavy smokers (-57.79, 24.30). Estimates of annual decline in forced vital capacity (FVC) were highest in current smokers without the use of natural gas (-25.78, 14.78) and among old heavy smokers (-33.88, 20.28). Living on a farm is associated with decreased FEV1 and FVC, but not statistically significant by sex and age.
Conclusions:
A complex mix of personal and contextual factors may affect these estimates.
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