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Article

Influence of Farm Environment on Asthma during the Life Course: A Population-Based Birth Cohort Study in Northern Finland

1
Research Unit of Population Health, Faculty of Medicine, University of Oulu, 90220 Oulu, Finland
2
Department of Occupational Medicine, Haukeland University Hospital, N-5021 Bergen, Norway
3
Centre for International Health, Department of Global Public Health and Primary Care, University of Bergen, N-5009 Bergen, Norway
4
Unit of Primary Care, Oulu University Hospital, 90220 Oulu, Finland
5
MRC Centre for Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London W2 1PG, UK
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2023, 20(3), 2128; https://doi.org/10.3390/ijerph20032128
Received: 20 December 2022 / Revised: 13 January 2023 / Accepted: 18 January 2023 / Published: 24 January 2023

Abstract

We investigated the influence of a farming environment on asthma at three time points from birth to 46 years using the Northern Finland Birth Cohort 1966 (n = 10,926). The prevalence of asthma was investigated by postal questionnaires at 14, 31 and 46 years of age. Exposure to a farming environment was assessed by a postal questionnaire at birth and at 31 and 46 years of age. Odds ratios (ORs) and their 95% confidence intervals (95% CIs) for the prevalence of asthma were obtained from multinomial logistic regression, stratified by sex. Being born in a farmer family was potentially causally associated with lower risk of asthma in males at 31 years of age (OR 0.56, 95% CI 0.37, 0.85) and in females at 46 years of age (OR 0.64, 95% CI 0.44, 0.95). Working as a farmer was not associated with asthma. Exposure to a farming environment in childhood may have a lifelong impact on developing asthma from birth through young adulthood and until middle age, indicating that ‘immune deviation’ may persist throughout life.
Keywords: asthma; asthma epidemiology; environmental exposures; farming; life course; early life origins asthma; asthma epidemiology; environmental exposures; farming; life course; early life origins

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MDPI and ACS Style

Kantomaa, M.T.; Tolvanen, M.; Halonen, M.; Svanes, C.; Järvelin, M.-R.; Sebert, S. Influence of Farm Environment on Asthma during the Life Course: A Population-Based Birth Cohort Study in Northern Finland. Int. J. Environ. Res. Public Health 2023, 20, 2128. https://doi.org/10.3390/ijerph20032128

AMA Style

Kantomaa MT, Tolvanen M, Halonen M, Svanes C, Järvelin M-R, Sebert S. Influence of Farm Environment on Asthma during the Life Course: A Population-Based Birth Cohort Study in Northern Finland. International Journal of Environmental Research and Public Health. 2023; 20(3):2128. https://doi.org/10.3390/ijerph20032128

Chicago/Turabian Style

Kantomaa, Marko T., Mimmi Tolvanen, Miia Halonen, Cecilie Svanes, Marjo-Riitta Järvelin, and Sylvain Sebert. 2023. "Influence of Farm Environment on Asthma during the Life Course: A Population-Based Birth Cohort Study in Northern Finland" International Journal of Environmental Research and Public Health 20, no. 3: 2128. https://doi.org/10.3390/ijerph20032128

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