70 Analysis of long term effects on FEV1/FVC ratio in cotton mill workers Authors: Vrushali R Nalawade, Ramchandra Nalawde Year: 2017, Volume: 2, Number: 1 Medpulse International Journal of Physiology 2019/Nov/07 (0 downloads) Abstract Abstract Background: Over the last decade, India has achieved a significant quantitative increase in cotton production. Depending upon the exposure of cotton dust, the workers show various changes in lung parameters. It is important to study the respiratory functions in cotton mill workers time to time to detect any occupational hazards occurring. This study was conducted to analyze of long term effects on FEV1/FVC ratio in cotton mill workers. Material and Methods: A cotton mill situated at Kadegaon in Sangli district was selected for the present study. A detailed assessment was done and various parameters were recorded which includes department of work, history of duration of exposure to cotton dust particles. A pulmonary function test was recorded using computerized spirometer. Results: Spirometric results in our study showed non significant decrease in FVC, FEV1 and FEV1/ FVC Ratio. Discussion: The lung parameters were not changed significantly. This shows the reduced prevalence of byssinosis among the cotton textile mill workers exposed to cotton dust, due to proper precautions taken in mill machineries and workers. Keywords: FEV1/FVC Ratio, Cotton Mill Workers, Spirometry.