A prognostic model of excessive lung function decline among Québec apprentices: a cohort exposed to occupational sensitizing agents

  • Alfi Afadiyanti Parfi Research Center, Hôpital du Sacré-Coeur de Montréal, Montréal, Canada https://orcid.org/0000-0002-1593-9526
  • Mahsa Taghiakbari Research Institute of the McGill University Health Center, Montréal, Canada https://orcid.org/0000-0001-6011-3400
  • Meshack Achore Research Center, Hôpital du Sacré-Coeur de Montréal, Montréal, Canada https://orcid.org/0000-0002-8321-7293
  • Denyse Gautrin Research Center, Hôpital du Sacré-Coeur de Montréal, Montréal, Canada
  • Gleb Bezgin McGill Centre for Studies in Aging, Montréal, Canada
  • Eva Suarthana Research Center, Hôpital du Sacré-Coeur de Montréal, Montréal, Canada; Research Institute of the McGill University Health Center, Montréal, Canada
DOI: https://doi.org/10.13181/mji.oa.204530
Keywords: excessive decline, lung function, model, prognosis
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Abstract

BACKGROUND Forced expiratory volume in 1 second (FEV1) decline as a predictor of lung-related health problems is widely observed, but not fully investigated. This study aimed to develop models to predict FEV1 decline among apprentices exposed to sensitizing agents.

METHODS Of 692 apprentices recruited and followed in 3.6–17.3 years, 292 were exposed to low-molecular weight agents. The analysis was restricted to 357 apprentices with complete lung function assessment at the end of their training with a minimum of 5-year follow-up. According to the American Thoracic Society guideline, a mean FEV₁ decline >60 ml/year was defined as “accelerated.” Descriptive statistics and Cox regression analysis were utilized to determine its predictors. To develop the prognostic models, we used a logistic regression analysis adjusted for the follow-up duration. The accuracy of the models was quantified using calibration and discrimination measures.

RESULTS Of 357 subjects, 62 (17.4%) had an excessive FEV1 decline post-apprenticeship. The questionnaire model (model 1), which included male sex, wheezing, and exposure to isocyanate or animal allergens during the apprenticeship, showed a reasonable discriminative ability (area under the receiver operating characteristics curve [AUC] of 0.67, 95% CI = 0.59–0.75). Adding the percent-predicted FEV₁ value at the end of apprenticeship significantly increased the discriminative ability of the model (model 4) (AUC = 0.762, 95% CI = 0.694–0.829) with a good calibration and reasonable internal validity.

CONCLUSIONS We developed a model for accelerated lung function decline with a good accuracy and internal validity. However, external validation of the model is necessary.

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Published
2021-03-25
How to Cite
1.
Parfi AA, Taghiakbari M, Achore M, Gautrin D, Bezgin G, Suarthana E. A prognostic model of excessive lung function decline among Québec apprentices: a cohort exposed to occupational sensitizing agents. Med J Indones [Internet]. 2021Mar.25 [cited 2024Jul.3];30(1):45-3. Available from: http://mji.ui.ac.id/journal/index.php/mji/article/view/4530
Issue
Vol. 30 No. 1 (2021): March
Section
Clinical Research

Copyright (c) 2021 Alfi Afadiyanti Parfi, Mahsa Taghiakbari, Meshack Achore, Denyse Gautrin, Gleb Bezgin, Eva Suarthana

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