Silicosis among agate workers at Shakarpur: An analysis of clinic-based data

Chaudhury, Nayanjeet; Phatak, Ajay; Paliwal, Rajiv; Raichaudhari, Chandra
October 2010
Lung India;Oct-Dec2010, Vol. 27 Issue 4, p221
Academic Journal
Background: There is a high prevalence of silicosis and other morbid conditions leading to early death among agate workers at Khambhat of Gujarat. Aims: The present study describes the prevalence of X-ray positive silicosis in a sample of a high-risk group visiting a clinic at Shakarpur of Khambhat. Settings and Design: A crosssectional study among 123 clinically suspected cases was conducted over 6 months. Materials and Methods: A chest physician and a radiologist independently evaluated the Chest X-rays of 123 clinically suspected patients of silicosis. Silicosis was confirmed if either of them rated the X-ray as positive. Statistical Analysis: Descriptive statistics and logistic regression were done using SPSS software version 14. Results: Out of 123 cases, 85 (69.1%) were confirmed as silicosis. There was no significant difference in the prevalence between males (70.3%) and females (69.4%). Workers with more than 10 years of exposure to silica had an odd ratio of 4.8, 95% CI (1.76, 13.60) compared to those with less than 10 years of exposure. A logistic regression analysis showed that for every extra year of exposure, the odds of getting silicosis increased by about 12%. Conclusions: This study highlights the catastrophic effects of exposures to silica in agate worker, which calls for urgent protective measures for this population.


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