Ty-Jour T1 - Fef 25-75%和Fef 75%对JF - 欧洲呼吸期刊Jo - Eur Respir J SP - 1051的临床决策没有贡献LP - 1058 Do - 10.1183 / 09031936.00128113 VL - 43是 - 4 Au - Quanjer,Philip H. Au - Weiner,Daniel J. Au - Pretto,Jeffrey J. Au - Brazzale,Danny J. Au - Boros,Piotr W. Y1- 2014/04/01 UR - //www.qdcxjkg.com/content/43/4/1051.Abstract n2 - 该研究的目的是确定测量强制呼气流量的增加值25-75当在1S(FEV1),FVC和FEV1 / FVC中强制呼气量的测量超过和高于呼出(FEF75%)时,强制生命能力(FEF25-75%)和流量的百分比呼气(FEF75%)比率。我们使用来自11名654个白人男性的FEV1,FVC和FEF25-75%的肺活量测量,并在3-94岁的白色女性中,在四个三级医院的肺功能实验室常规测试。FEF75%在8254名男性和7407名女性中提供。使用来自全球肺功能倡议的预测方程式计算FEV1,FVC,FEV1 / FVC比率,FEF25-75%和FEF75%,计算预测值和定义为第五百分位数的预测值和下限。在分类测试结果方面很少丧失。FEF25-75%和FEF75%仅在正常范围内仅为2.75%和1.29%的病例,而FEV1,FVC和FEV1 / FVC比率在正常限制。 Airways obstruction went undetected by FEF25–75% in 2.9% of cases and by FEF75% in 12.3% of cases. Maximum mid-expiratory flow and flow towards the end of the forced expiratory manoeuvre do not contribute usefully to clinical decision making over and above information from FEV1, FVC and FEV1/FVC ratio. Forced expiratory flow measurements do not contribute usefully to clinical decision making http://ow.ly/t6Xz1 ER -