DOSE-RESPONSE OF COTTON DUST EXPOSURE WITH LUNG FUNCTION AMONG TEXTILE WORKERS: MULTITEX STUDY IN KARACHI, PAKISTAN

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AKBER ALI NAUREEN; NAFEES ASAAD AHMED; FATMI ZAFAR; AZAM SYED IQBAL

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Journal: INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE Year:2018 | Volume:9 | Issue:3 Page(s): 120-128

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Title

DOSE-RESPONSE OF COTTON DUST EXPOSURE WITH LUNG FUNCTION AMONG TEXTILE WORKERS: MULTITEX STUDY IN KARACHI, PAKISTAN

Author(s)

AKBER ALI NAUREEN | NAFEES ASAAD AHMED | FATMI ZAFAR | AZAM SYED IQBAL | Issue Writer Certificate

Keywords

COTTON FIBER

OCCUPATIONAL EXPOSURE

RESPIRATORY FUNCTION TESTS

SPIROMETRY

PAKISTAN

BYSSINOSIS

Abstract

Background: Cotton dust exposure among textile mill workers lead to impaired lung function. However, only few studies have investigated the dose-response relationship between cotton dust and lung function.Objective: To determine the dose-response relationship between cotton dust exposure and lung function among textile workers.Methods: This cross-sectional survey was conducted from January to March 2016 and included 303 adult male textile workers from spinning and weaving sections of 5 mills in Karachi, PAKISTAN. We collected data through a translated version of the American Thoracic Society respiratory questionnaire (ATS-DLD-78A) and using SPIROMETRY. Mill-level airborne cotton dust was measured over an 8–12-hour shift through UCB-PATS (University of California, Berkeley- Particle, and Temperature Monitoring System). Multiple linear regression was used to determine the association between cotton dust exposure and lung function assessed through the 3 indices: forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), and their ratio (FEV1/FVC).Results: The mean age of the workers was 32.5 (SD 10.5) years. The mean SPIROMETRY indices expressed in percent predicted values were FEV1 82.6 (SD 14.0); FVC 90.3 (14.7), and FEV1/FVC 94.9 (10.5). The median cotton dust concentration was 0.61 (IQR 0.2 to 1.3) mg/ m3. The frequency of respiratory symptoms was 15% for cough, 20% for phlegm, and 20% for wheezing. After adjustment for covariates, every mg/m3 increase in dust concentration was associated with 5.4% decline in FEV1.Conclusion: This study quantifies the exposure-dependent relationship between cotton dust and lung function; which has implications for regulations and standards in the textile industry in PAKISTAN and similar cotton-processing countries.

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APA: Copy

AKBER ALI, NAUREEN, NAFEES, ASAAD AHMED, FATMI, ZAFAR, & AZAM, SYED IQBAL. (2018). DOSE-RESPONSE OF COTTON DUST EXPOSURE WITH LUNG FUNCTION AMONG TEXTILE WORKERS: MULTITEX STUDY IN KARACHI, PAKISTAN. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE, 9(3), 120-128. SID. https://sid.ir/paper/320355/en

Vancouver: Copy

AKBER ALI NAUREEN, NAFEES ASAAD AHMED, FATMI ZAFAR, AZAM SYED IQBAL. DOSE-RESPONSE OF COTTON DUST EXPOSURE WITH LUNG FUNCTION AMONG TEXTILE WORKERS: MULTITEX STUDY IN KARACHI, PAKISTAN. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE[Internet]. 2018;9(3):120-128. Available from: https://sid.ir/paper/320355/en

IEEE: Copy

NAUREEN AKBER ALI, ASAAD AHMED NAFEES, ZAFAR FATMI, and SYED IQBAL AZAM, “DOSE-RESPONSE OF COTTON DUST EXPOSURE WITH LUNG FUNCTION AMONG TEXTILE WORKERS: MULTITEX STUDY IN KARACHI, PAKISTAN,” INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE, vol. 9, no. 3, pp. 120–128, 2018, [Online]. Available: https://sid.ir/paper/320355/en

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