Spirometric Measurements among Quartz Stone Ex-workers of Gujarat, India

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Spirometric Measurements among Quartz Stone Ex-workers of Gujarat, India : Rajnarayan R Tiwari, et al. Occupational Medicine Division, National Institute of Occupational Health, Ahmedabad, India-The present cross sectional study was carried out among 134 ex-workers from quartz stone crushing units. Using the interview technique as a tool for data collection, demographic and occupational details of the subjects were recorded on the predesigned proforma. Standard diagnostic criteria were used for diagnosing silicosis and silicotuberculosis. The pulmonary functions of the subjects were measured with Spirovit SP-10. The mean age of the males was found to be 33.18 ± 10.39 yr and that of the females was 30.10 ± 9.3 yr and for the whole group was 31.77 ± 9.99 yr. Mean duration of exposure was 2.74 ± 1.65 yr. The study variables included age, sex, duration of exposure, smoking and respiratory morbidity. Forced Vital Capacity (FVC) which suggests lung parenchymal disorders was found to be significantly reduced with female sex, presence of smoking, increasing duration of exposure and presence of pneumoconiosis, whereas the lung function parameters indicating the status of airways were found to be significantly reduced with all the factors. Therefore, it was concluded that quartz stone workers exposed to approximately 100% free silica had deteriorated lung function which can be attributed mainly to respiratory disorders along with other epidemiological factors such as age, sex, duration of exposure and smoking. (J Occup Health 2003 ; 45 : 88-93)

Spirometric Measurements among Quartz Stone Ex-workers of Gujarat, India

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