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SHORT COMMUNICATION Table of Contents   
Year : 2021  |  Volume : 46  |  Issue : 2  |  Page : 313-316
Spirometric measurement among polyurethane foam mattress-making workers of India

1 Department of Industrial Hygiene, ICMR-National Institute for Research in Environmental Health, Bhopal, Madhya Pradesh, India
2 ICMR-Regional Occupational Health Centre (Southern), Bengaluru, Karnataka, India

Correspondence Address:
Dr. Rajnarayan Ramshankar Tiwari
ICMR-National Institute for Research in Environmental Health, Bhopal Bypass Road, Bhopal - 462 030, Madhya Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijcm.IJCM_909_20

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Background: The polyurethane foam (PUF) mattress-making workers are exposed to isocyanates which are known respiratory toxicants and cause effect on pulmonary volumes and flows. Thus, the study was with a rationale to measure the changes in pulmonary flow and volumes due to isocyanates among PUF mattress-making workers. Materials and Methods: The study included 183 male workers from seven PUF making units of western and northern India. Using the interview technique as a tool for data collection, demographic and occupational details of the subjects were recorded on the predesigned and pretested pro forma. The mean of spirometric parameters was compared using one-way ANOVA and t-test. The relation between spirometric parameters and anthropometric parameters was analyzed using the correlation coefficient. Results: The spirometry showed that out of 183 participants, 165 (90.2%) subjects had normal spirometry, 13 (7.1%) had restrictive impairment, and 4 (2.2%) had obstructive impairment. All the mean spirometric values showed a declining trend with increasing age, while only forced expiratory volume in first second and forced vital capacity25%–75% showed a declining trend with increasing duration of employment. The spirometric measurements had a negative correlation with age and positive correlation with height. Conclusion: The spirometric values representing the airway flow were affected. The associated factors include age and duration of exposure.

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