https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50288 Wed 28 Feb 2024 16:40:22 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46746 Tue 29 Nov 2022 15:18:50 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52102 Thu 28 Sep 2023 14:49:40 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41244 Sat 30 Jul 2022 12:33:26 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:17502 , FVC and FEF25-75% from 11654 white males and 11113 white females, aged 3-94 years, routinely tested in the pulmonary function laboratories of four tertiary hospitals. FEF75% was available in 8254 males and 7407 females. Predicted values and lower limits of normal, defined as the fifth percentile, were calculated for FEV1, FVC, FEV1/FVC ratio, FEF25-75% and FEF75% using prediction equations from the Global Lung Function Initiative. There was very little discordance in classifying test results. FEF25-75% and FEF75% were below the normal range in only 2.75% and 1.29% of cases, respectively, whereas FEV1, FVC and FEV1/FVC ratio were within normal limits. 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.]]> Sat 24 Mar 2018 08:04:05 AEDT ]]>