Context: Repeated exposure to dusty environment in an industry causes airway diseases which may affect
pulmonary function over a period of time. Aims: 1) To study the pulmonary function test parameters in
workers of sub-departments in sugar factory 2) To find out the prevalence of Obstructive, Restrictive and
Mixed type of pulmonary impairment and their correlation with duration of exposure to occupational
environment. Study Design: An observational study was conducted on 294 permanent sugar factory
workers at Urban Health Centre, Pravaranagar. Materials and Method: The pulmonary function viz.
(FVC, FEV1, FEV1/FVC %, FEF25-75%) was recorded by a portable computerized RMS-Spirometer.
Spirometric studies were performed in various sub-departments in sugar factory including 60 matching
controls. To evaluate the effect of occupational exposure, the workers were divided into three categories i.e.
those exposed for 11-20 yrs, 21-30 yrs and ≥ 31yrs to the dust. Results: The overall prevalence of
pulmonary impairment was found to be 31.97%. The highest prevalence was found in Bagasse workers
(40.48%) followed by Manufacturing dept. (38.24%). Amongst the type of pulmonary impairment bronchial
obstruction was predominant (18.03%). FEV1/FVC was found significant in Bagasse workers and
Manufacturing dept. workers. Amongst the occupational exposure sub-groups, ≥ 31yrs exposed workers
were maximally affected by obstructive type (21.43%), Restrictive type (14.29%) & Mixed type (3.17%) of
pulmonary impairment. Conclusions: The study demonstrated a significant association between pulmonary
function abnormalities and certain sub-occupations in the sugar factory. The majority of the workers with
pulmonary impairment had ≥ 31yrs of occupational exposure
Context: Repeated exposure to dusty environment in an industry causes airway diseases which may affectpulmonary function over a period of time. Aims: 1) To study the pulmonary function test parameters inworkers of sub-departments in sugar factory 2) To find out the prevalence of Obstructive, Restrictive andMixed type of pulmonary impairment and their correlation with duration of exposure to occupationalenvironment. Study Design: An observational study was conducted on 294 permanent sugar factoryworkers at Urban Health Centre, Pravaranagar. Materials and Method: The pulmonary function viz.(FVC, FEV1, FEV1/FVC %, FEF25-75%) was recorded by a portable computerized RMS-Spirometer.Spirometric studies were performed in various sub-departments in sugar factory including 60 matchingcontrols. To evaluate the effect of occupational exposure, the workers were divided into three categories i.e.those exposed for 11-20 yrs, 21-30 yrs and ≥ 31yrs to the dust. Results: The overall prevalence ofpulmonary impairment was found to be 31.97%. The highest prevalence was found in Bagasse workers(40.48%) followed by Manufacturing dept. (38.24%). Amongst the type of pulmonary impairment bronchialobstruction was predominant (18.03%). FEV1/FVC was found significant in Bagasse workers andManufacturing dept. workers. Amongst the occupational exposure sub-groups, ≥ 31yrs exposed workerswere maximally affected by obstructive type (21.43%), Restrictive type (14.29%) & Mixed type (3.17%) ofผลระบบทางเดินหายใจ บทสรุป: การศึกษาแสดงให้เห็นว่าความสัมพันธ์อย่างมีนัยสำคัญระหว่างระบบทางเดินหายใจฟังก์ชันความผิดปกติและบางอาชีพย่อยในโรงงานน้ำตาล ส่วนใหญ่ของผู้ปฏิบัติงานด้วยมีผลระบบทางเดินหายใจ≥ปี 31 ของอุบัติเหตุ
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