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

Table 3

Comparison of sputum indexes between the two groups before and after treatment.

Group	Cases	Sputum score		α1-Acid glycoprotein		Sputum Ca^2+
		Before	After	Before	After	Before	After
Treatment	58
Control	59
value		0.594	-2.77	0.715	-0.65	1.257	-0.462
value		0.554	0.007	0.476	0.518	0.213	0.644