Comparison of exhaled breath condensate pH using two commercially available devices in healthy controls, asthma and COPD patients

Table 1 Clinical characteristics of the study population

	Healthy control	Asthma	COPD	Cold
No. of patients	10	10	10	10
Age (y)	34 ± 11.2	25.1 ± 5.9	60.8 ± 5.4	29.6 ± 6.4
Sex (male/female)	5/5	1/9	8/2	7/3
Smoker/non smoker	0/10	0/10	7/3*	1/9
FEV₁ pre broncho. (% pred.)	ND	99.9 ± 7.7	70 ± 14.8	ND
FEV₁ post broncho. (% pred.)	ND	111.9 ± 9.2	8.5 ± 13.3	ND
FVC (% pred.)	ND	109 ± 8.1	68 ± 11.6	ND

* = ex smoker, ND = Not Determined; Values are expressed as means ± SDs
%pred. =% predicted, pre broncho = pre bronchodilator; post broncho = post bronchodilator

ISSN: 1465-993X