Pulmonary Medicine / 2012 / Article / Tab 2

Clinical Study

Concave Pattern of a Maximal Expiratory Flow-Volume Curve: A Sign of Airflow Limitation in Adult Bronchial Asthma

Table 2

Correlation between % changes of angle β, SF25%, and SF50% and % changes of spirometric parameters after SABA inhalation.

Angle β versus versus versus

FVC (% change)0.00430.98−0.0850.57−0.320.11
FEV1 (% change)0.320.1−0.230.24−0.320.1
PEF (% change)−0.150.470.0960.630.00670.97
(% change)0.570.0017−0.430.024−0.310.12
(% change)0.0750.71−0.120.54−0.350.074
(% change)0.71<0.0001−0.350.078−0.250.21
(% change)0.470.013−0.530.0046−0.540.0041
(% change)0.120.54−0.9<0.0001
(% change)0.330.089
Angle (% change)

Bold text indicates significant correlation between the parameters.

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