Altered protease and antiprotease balance during a COPD exacerbation contributes to mucus obstruction

Respiratory Research

Table 2 Demographic data of the COPD patients included the study

subject	age	Pack years	smoking status		chest x-ray (infiltrations?)	CRP in mg/l	leucocytes in G/l (normal: 4.3–10)	Procalcitonin in μg/l	FEV1 (%)	VC (%)	FEV1/VC (%)	color of sputum
01	51	80	current smoker	Visit 1	no	<5	6.24	*	49	95	47	clear
				Visit 2		<5	7.05	*	58	94	55	clear
02	61	80	former smoker	Visit 1	no	<5	8.28	0.22	63	95	66	clear/slightly yellow
				Visit 2		14	8.14	0.17	67	95	70	clear
03	74	20	former smoker	Visit 1	unkown	31	7.25	*	67	95	70	clear
				Visit 2		18	6.64	*	81	95	75	clear
04	67	20	former smoker	Visit 1	no	11	10.7	<0.1	48	89	53	clear/slightly yellow
				Visit 2		*	*	*	42	98	43	clear
05	65	30	former smoker	Visit 1	no	18	3.92	<0.1	68	98	69	clear
				Visit 2		<5	5.21	<0.1	95	98	97	clear
06	52	50	current smoker	Visit 1	no	11	13	*	32	93	34	clear
				Visit 2		<5	9.15	*	74	98	75	clear
07	57	35	current smoker	Visit 1	no	<5	5.89	*	37	91	41	clear
				Visit 2		*	*	*	58	90	64	clear
08	50	50	current smoker	Visit 1	no	14	15.3	<0.1	36	93	39	clear
				Visit 2		24	15.3	<0.1	51	92	55	clear
09	62	70	current smoker	Visit 1	no	7	8.5	*	56	89	63	clear/slightly yellow
				Visit 2		<5	6.15	*	67	89	75	clear

ISSN: 1465-993X