Table 1—

Patient characteristics and lung function before and after bronchodilation(BD)

	Pre-BD	Post-BD	p-value
Age yrs	63.7±8.4
Sex M/F	21/23
Weight kg	68.3±21.6
Height cm	163.9±9.0
FEV₁
L	1.12±0.39	1.31±0.46	<0.001
% pred	42.28±13.82	49.08±15.87	<0.001
FEV₁/FVC	46.81±10.75	46.23±11.59	0.510
FVC
L	2.42±0.68	2.86±0.76	<0.001
% pred	68.69±14.26	80.99±15.14	<0.001
SVC
L	2.60±0.70	2.95±0.83	<0.001
% pred	73.01±12.64	82.78±16.33	<0.001
IC
L	1.85±0.52	2.09±0.62	<0.001
% pred	72.95±17.94	81.51±18.92	<0.001
RV
L	4.82±1.31	4.50±1.15	<0.001
% pred	235.00±59.04	219.99±50.84	<0.001
TGV
L	5.62±1.48	5.35±1.37	<0.001
% pred	184.49±36.19	175.60±34.23	<0.001
TLC
L	7.50±1.72	7.44±1.65	0.228
% pred	131.74±20.03	130.86±17.73	0.175

Data are presented as mean±sd, unless otherwise indicated. M/F: male/female; FEV₁: forced expiratory volume in 1 s; % pred: % predicted; FVC: forced vital capacity; SVC: slow vital capacity; IC: inspiratory capacity; RV: residual volume; TGV: thoracic gas volume; TLC: total lung capacity.