1998年 6月到 1999年 2月对包头市进行了全市肺结核病流行病学调查。报告如下。对象与方法　 (1)对象 :在全市 9个旗县区选择农、牧、市、矿 8个旗县区 (除白云区只有 2万人口 )开展肺结核病调查 ,以随机分层整群抽样方法确定 8个具体流调点 ,每点 2 0 0 0人左右 ,除外出 6个月 From June 1998 to February 1999, the city conducted an epidemiological survey of tuberculosis in Baotou City. The report is as follows. Subjects and Methods (1) Subjects: Eight flag counties (except 20,000 in Baiyun District) of 9 counties and districts in the city were selected to carry out pulmonary tuberculosis investigations. Randomly stratified cluster sampling methods Determine 8 specific flow point, each point about 200, except for 6 months