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对33名尿素作业工人和33名健康人员连续3年肺功能检查报告进行分析和对照,结果发现,3年中接触组各项肺功能指标中除VC/PR和FVC/RR外,其余各项每年均低于对照组,其中MMF、V_(50)/HT和V_(25)/HT 3项与对照组的差异有显著性(P<
33 urea workers and 33 health workers for 3 consecutive years of pulmonary function test report analysis and control and found that 3 years in the contact group of pulmonary function indicators in addition to VC / PR and FVC / RR, the rest of the Which was lower than that of the control group every year. There was significant difference between MMF, V_ (50) / HT and V_ (25) / HT_3 and the control group (P <