Association between Across-Shift Spirometric Parameters and Sleep Characteristics in Workers with Inhalational Occupational Exposure

Background and Objective: Workplace exposes workers to different hazardous chemicals. In this study, we aimed to assess the changes of pulmonary function test (PFT) parameters as the objective indicator of lung impairment and its association with demographic data and sleep characteristics. Mater...

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Main Authors: Mohammad Mehdi Mehrabinejad, Maryam Saraei, Abdolkarim Hajighaderi, Arezu Najafi
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2021-03-01
Series:Journal of Sleep Sciences
Subjects:
Online Access:https://jss.tums.ac.ir/index.php/jss/article/view/152
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author Mohammad Mehdi Mehrabinejad
Maryam Saraei
Abdolkarim Hajighaderi
Arezu Najafi
author_facet Mohammad Mehdi Mehrabinejad
Maryam Saraei
Abdolkarim Hajighaderi
Arezu Najafi
author_sort Mohammad Mehdi Mehrabinejad
collection DOAJ
description Background and Objective: Workplace exposes workers to different hazardous chemicals. In this study, we aimed to assess the changes of pulmonary function test (PFT) parameters as the objective indicator of lung impairment and its association with demographic data and sleep characteristics. Materials and Methods: This cross-sectional study was carried out on 200 male workers of a smelting factory located in Tehran Province, Iran. The respiratory symptoms questionnaire, Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI), and demographic characteristics were recorded for the participants. Participants also underwent spirometry and the related parameters were recorded. Results: A total of 200 iron foundry workers were assessed. All participants were men, and mean ± standard deviation (SD) of age was 39.1 ± 8.9 years ranging from 20 to 65 years. Of 200 workers, 153 (76.5%) were married and 72 (36.0%) were smokers. Among all participants, 131 (65.5%) reported at least one respiratory symptom, and these workers had significantly poorer sleep quality (P = 0.02) and insomnia (P = 0.01). Across-shift change in forced expira-tory volume in one second (FEV1) and peak expiratory flow rate (PEFR) of spirometry parameters was significant among participants with clinical insomnia (P = 0.02 and P = 0.04, respectively) and poor sleep quality (P < 0.0001 and P = 0.04, respectively). Conclusion: Results showed a significant cross-shift reduction in PFT values among workers with clinical insomnia or poor sleep quality. Accordingly, evaluation of sleep characteristics along with respiratory symptoms in workers with inhalational occupational exposure is recommended.
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spelling doaj.art-6f9aad23f4f24cbd92629b3f1bd929c12022-12-21T20:14:53ZengTehran University of Medical SciencesJournal of Sleep Sciences2476-29382476-29462021-03-015310.18502/jss.v5i3.6916Association between Across-Shift Spirometric Parameters and Sleep Characteristics in Workers with Inhalational Occupational ExposureMohammad Mehdi Mehrabinejad0Maryam Saraei1Abdolkarim Hajighaderi2Arezu Najafi3Students’ Scientific Research Center, Tehran University of Medical Sciences, Tehran, IranCenter for Research on Occupational Diseases, Tehran University of Medical Sciences, Tehran, IranStudents’ Scientific Research Center, Tehran University of Medical Sciences, Tehran, IranOccupational Sleep Research Center, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, IranBackground and Objective: Workplace exposes workers to different hazardous chemicals. In this study, we aimed to assess the changes of pulmonary function test (PFT) parameters as the objective indicator of lung impairment and its association with demographic data and sleep characteristics. Materials and Methods: This cross-sectional study was carried out on 200 male workers of a smelting factory located in Tehran Province, Iran. The respiratory symptoms questionnaire, Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI), and demographic characteristics were recorded for the participants. Participants also underwent spirometry and the related parameters were recorded. Results: A total of 200 iron foundry workers were assessed. All participants were men, and mean ± standard deviation (SD) of age was 39.1 ± 8.9 years ranging from 20 to 65 years. Of 200 workers, 153 (76.5%) were married and 72 (36.0%) were smokers. Among all participants, 131 (65.5%) reported at least one respiratory symptom, and these workers had significantly poorer sleep quality (P = 0.02) and insomnia (P = 0.01). Across-shift change in forced expira-tory volume in one second (FEV1) and peak expiratory flow rate (PEFR) of spirometry parameters was significant among participants with clinical insomnia (P = 0.02 and P = 0.04, respectively) and poor sleep quality (P < 0.0001 and P = 0.04, respectively). Conclusion: Results showed a significant cross-shift reduction in PFT values among workers with clinical insomnia or poor sleep quality. Accordingly, evaluation of sleep characteristics along with respiratory symptoms in workers with inhalational occupational exposure is recommended.https://jss.tums.ac.ir/index.php/jss/article/view/152Occupational exposure; Spirometry; Sleep; Insomnia; Industry
spellingShingle Mohammad Mehdi Mehrabinejad
Maryam Saraei
Abdolkarim Hajighaderi
Arezu Najafi
Association between Across-Shift Spirometric Parameters and Sleep Characteristics in Workers with Inhalational Occupational Exposure
Journal of Sleep Sciences
Occupational exposure; Spirometry; Sleep; Insomnia; Industry
title Association between Across-Shift Spirometric Parameters and Sleep Characteristics in Workers with Inhalational Occupational Exposure
title_full Association between Across-Shift Spirometric Parameters and Sleep Characteristics in Workers with Inhalational Occupational Exposure
title_fullStr Association between Across-Shift Spirometric Parameters and Sleep Characteristics in Workers with Inhalational Occupational Exposure
title_full_unstemmed Association between Across-Shift Spirometric Parameters and Sleep Characteristics in Workers with Inhalational Occupational Exposure
title_short Association between Across-Shift Spirometric Parameters and Sleep Characteristics in Workers with Inhalational Occupational Exposure
title_sort association between across shift spirometric parameters and sleep characteristics in workers with inhalational occupational exposure
topic Occupational exposure; Spirometry; Sleep; Insomnia; Industry
url https://jss.tums.ac.ir/index.php/jss/article/view/152
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