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经“t”检验证明,可疑石棉肺(O~+)与Ⅰ期石棉肺的MTT测定值均较正常人(O)显著延长(P<0.05)和非常显著延长(P<0.01)。Ⅰ期石棉肺的MTTp测定值较正常人显著延长(P<了用力呼气肺量图平均通过时间(MTT)及用力呼气肺量图部分通过时间(MTTp)测定,结果如表所示。
The “t” test showed that the MTT values of ascites lung (O ~ +) and Ⅰ phase asbestosis were significantly longer (P <0.05) and significantly longer (P <0.01) than those of normal people. The MTTp of stage Ⅰ asbestosis was significantly longer than that of normal (P <0.01). The mean time to expiration (MTT) and forced expiratory volume of lung (MTTp) were measured. The results are shown in the table.