Tiwari Rajnarayan R, Narain Raj, Patel Bhupendra D, Makwana Ishwar S, Saiyed Habibullah N
Occupational Medicine Division, National Institute of Occupational Health, Ahmedabad, India.
J Occup Health. 2003 Mar;45(2):88-93. doi: 10.1539/joh.45.88.
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 silico-tuberculosis. 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.
本横断面研究在134名石英石破碎厂的前工人中开展。采用访谈技术作为数据收集工具，在预先设计的表格上记录受试者的人口统计学和职业细节。使用标准诊断标准诊断矽肺和硅肺结核。用Spirovit SP - 10测量受试者的肺功能。发现男性的平均年龄为33.18±10.39岁，女性为30.10±9.3岁，整个组为31.77±9.99岁。平均暴露时长为2.74±1.65年。研究变量包括年龄、性别、暴露时长、吸烟和呼吸道发病率。提示肺实质疾病的用力肺活量（FVC）在女性、吸烟、暴露时长增加和患有尘肺病时显著降低，而表明气道状况的肺功能参数在所有这些因素影响下均显著降低。因此，得出结论，接触约100%游离二氧化硅的石英石工人肺功能恶化，这主要可归因于呼吸系统疾病以及年龄、性别、暴露时长和吸烟等其他流行病学因素。
