Influence of Childhood Exposure to a Farming Environment on Age at Asthma Diagnosis in a Population-Based Study

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http://hdl.handle.net/10138/335927

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Andersen , H , Ilmarinen , P , Honkamäki , J , Tuomisto , E L , Hisinger-Mölkänen , H , Backman , H , Lundbäck , B , Rönmark , E , Lehtimäki , L , Sovijärvi , A , Piirilä , P & Kankaanranta , H 2021 , ' Influence of Childhood Exposure to a Farming Environment on Age at Asthma Diagnosis in a Population-Based Study ' , Journal of Asthma and Allergy , vol. 14 , pp. 1081-1091 . https://doi.org/10.2147/JAA.S323504

Title: Influence of Childhood Exposure to a Farming Environment on Age at Asthma Diagnosis in a Population-Based Study
Author: Andersen, Heidi; Ilmarinen, Pinja; Honkamäki, Jasmin; Tuomisto, E. Leena; Hisinger-Mölkänen, Hanna; Backman, Helena; Lundbäck, Bo; Rönmark, Eva; Lehtimäki, Lauri; Sovijärvi, Anssi; Piirilä, Päivi; Kankaanranta, Hannu
Contributor: University of Helsinki, Faculty of Medicine
University of Helsinki, HUS Medical Imaging Center
University of Helsinki, HUS Medical Imaging Center
Date: 2021
Language: eng
Number of pages: 11
Belongs to series: Journal of Asthma and Allergy
ISSN: 1178-6965
URI: http://hdl.handle.net/10138/335927
Abstract: Purpose: Asthma is a heterogeneous disease, and factors associated with different asthma phenotypes are poorly understood. Given the higher prevalence of farming exposure and late diagnosis of asthma in more rural Western Finland as compared with the capital of Helsinki, we investigated the relationship between childhood farming environment and age at asthma diagnosis. Methods: A cross-sectional population-based study was carried out with subjects aged 2069 years in Western Finland. The response rate was 52.5%. We included 3864 participants, 416 of whom had physician-diagnosed asthma at a known age and with data on the childhood environment. The main finding was confirmed in a similar sample from Helsinki. Participants were classified as follows with respect to asthma diagnosis: early diagnosis (011 years), intermediate diagnosis (12-39 years), and late diagnosis (40-69 years). Results: The prevalence of asthma was similar both without and with childhood exposure to a farming environment (11.7% vs 11.3%). Allergic rhinitis, family history of asthma, exsmoker, occupational exposure, and BMI >= 30 kg/m(2) were associated with a higher likelihood of asthma. Childhood exposure to a farming environment did not increase the odds of having asthma (aOR, 1.10; 95% CI, 0.87-1.40). It did increase the odds of late diagnosis (aOR, 2.30; 95% CI, 1.12-4.69), but the odds were lower for early (aOR, 0.49; 95% CI, 0.30-0.80) and intermediate diagnosis of asthma (aOR, 0.75; 95% CI, 0.47-1.18). Conclusion: Odds were lower for early diagnosis of asthma and higher for late diagnosis of asthma in a childhood farming environment. This suggests a new hypothesis concerning the etiology of asthma when it is diagnosed late.
Subject: agriculture
early-diagnosed asthma
intermediate-diagnosed asthma
late-diagnosed asthma
risk factors
phenotypes
INNATE LYMPHOID-CELLS
ADULT-ONSET ASTHMA
ALLERGIC SENSITIZATION
LUNG-FUNCTION
PHENOTYPES
RISK
PATHOGENESIS
PREVALENCE
PROTECTION
CHILDREN
3121 General medicine, internal medicine and other clinical medicine
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