Pahwa Punam, Dosman James A, McDuffie Helen H
Department of Community Health and Epidemiology, and Institute of Agricultural Rural and Environmental Health, University of Saskatchewan, Saskatoon, SK, Canada.
J Occup Environ Med. 2008 Dec;50(12):1394-400. doi: 10.1097/JOM.0b013e3181884be0.
To determine longitudinal estimates of pulmonary function decline in Canadian grain elevator workers before and after dust control by analyzing data collected from five regions of Canada over 15 years.
Declines in forced expired volume in one second and forced vital capacity before and after dust control were estimated by using a generalized estimating equations approach.
For grain workers who were in the grain industry for 20 or more years both before and after dust control: the mean annual loss of forced expired volume in one second was greatest among current smoking grain workers followed by ex-smokers and nonsmokers, respectively. Similar results were obtained for forced vital capacity.
Grain dust control was effective in reducing decline in the lung function measurements among grain workers in all smoking and exposure categories.
通过分析15年间从加拿大五个地区收集的数据，确定加拿大谷物升降机工人在粉尘控制前后肺功能下降的纵向估计值。
采用广义估计方程法估计粉尘控制前后一秒用力呼气量和用力肺活量的下降情况。
对于在粉尘控制前后从事谷物行业20年或更长时间的谷物工人：当前吸烟的谷物工人一秒用力呼气量的年平均损失最大，其次分别是既往吸烟者和不吸烟者。用力肺活量也得到了类似结果。
在所有吸烟和接触类别中，谷物粉尘控制有效地减少了谷物工人肺功能测量值的下降。
