Tiotropium Bromide Attenuates Mucus Hypersecretion in Patients with Stable Chronic Obstructive Pulmonary Disease

Table 4

Comparison of pulmonary function between two groups of COPD.

Group		FEV1/FVC		FEV1/predicted value
		Before	After	Before	After
Treatment	58
Control	59
value		0.838	0.399	0.79	0.825
value		0.399	0.691	0.431	0.411