Tiwari Rajnarayan R, Sharma Yashwant K, Saiyed Habibullah N
National Institute of Occupational Health, Ahmedabad, Gujarat, India.
Arch Med Res. 2005 Mar-Apr;36(2):171-4. doi: 10.1016/j.arcmed.2004.12.014.
The present cross-sectional study was carried out among 136 quartz stone grinders with the objective of studying the peak expiratory flow (PEF) and the associated epidemiological factors.
Interview technique was used to record demographic characteristics and occupational history on a predesigned proforma, which included questionnaires regarding demographic, occupational and clinical characteristics. This was followed by complete medical examination and measurement of PEF using Spirovit SP-10. The study included 75 (55.1%) male and 61 (44.9%) female silica-exposed workers. The mean age of the subjects was 31.77 +/- 9.99 years whereas the mean duration of exposure was 2.74 +/- 1.65 years. The mean PEF was found to be 5.16 +/- 2.1 L/min.
In the present study the PEF was significantly reduced in those having respiratory morbidity on both unadjusted and adjusted analyses.
This suggests that along with the restrictive pathology caused by free silica dust, obstructive changes are also encountered in silica-exposed workers.
本横断面研究在136名石英石研磨工中开展，目的是研究呼气峰值流速（PEF）及相关的流行病学因素。
采用访谈技术，根据预先设计的表格记录人口统计学特征和职业史，该表格包括有关人口统计学、职业和临床特征的问卷。随后进行全面体检，并使用Spirovit SP-10测量PEF。该研究纳入了75名（55.1%）男性和61名（44.9%）接触二氧化硅的女性工人。受试者的平均年龄为31.77±9.99岁，而平均暴露时长为2.74±1.65年。发现平均PEF为5.16±2.1升/分钟。
在本研究中，无论是未经调整还是调整后的分析，有呼吸系统疾病的人群中PEF均显著降低。
这表明，除了游离二氧化硅粉尘导致的限制性病变外，接触二氧化硅的工人中也会出现阻塞性改变。
