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Fig. 1 | BMC Pulmonary Medicine

Fig. 1

From: Baseline spirometry parameters as predictors of airway hyperreactivity in adults with suspected asthma

Fig. 1

Receiver operating characteristics (ROC) curve for; a baseline forced expiratory volume in 1 s, FEV1%predicted; b forced vital capacity, FVC %predicted; c FEV1/FVC; d angle β; e forced expiratory flow at 50% of FVC, FEF50% %predicted; f forced expiratory flow at 25–75% of FVC, FEF25–75% %predicted in the derivation cohort as predictors of methacholine responsiveness. AUC = Area under the curve. Grey line represents the line of unity with AUC = 0.5

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