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测定研究对象的肺活量(VC),用力肺活量(FVC)、一秒钟用力呼气容积(FEV1.0)、一秒钟用力呼气容积占用力肺活量的百分比(FEV1.0/FVC%)、残气容积(RV)、残总比(RV/TLC%)和一氧化碳弥散量(DLCO)等指标。用两维方差分析法检验肺功能指标在年龄、性别和研究组间的差异。VC、FVC、FEV1.0和DLCO在年龄和性别间差异均无统计学意义。FEV1.0/FVC%低年龄组高于高年龄组,女性高于男性,年龄和性别间差异有统计学意义。RV/TLC%随着年龄的增长而升高,年龄组间的差异有统计学意义,RV/TLC%在性别间的差异无统计学意义。煤工尘肺呈现混合性肺功能损害,石棉组的肺功能有限制性损害的趋势,煤尘组的肺功能有混合性损害的趋势。
The vital capacity (VC), forced vital capacity (FVC), forced expiratory volume in one second (FEV1.0), forced expiratory volume in one second (FEV1.0 / FVC%) were measured. RV, RV / TLC% and DLCO. Two-dimensional analysis of variance was used to test the differences in lung function between age, gender and study group. VC, FVC, FEV1.0 and Dlco between the age and gender differences were not statistically significant. FEV1.0 / FVC% in low age group than in high age group, women than men, age and gender differences were statistically significant. RV / TLC% increased with age, the difference between the age groups was statistically significant, RV / TLC% gender differences was not statistically significant. Coal worker pneumoconiosis showed mixed lung function impairment, lung function of asbestos group had the tendency of limited damage, and lung function of coal dust group had mixed damage tendency.