Table 1.

Study subject demographics

	Control	CF
Subjects (M/F) n	4/6	3/5
Age range (years)	20–28	25–38
FEV1% predicted	102.3 ± 12.3	43.1 ± 8.3*
Sputum PMNs (cells/mg plug)	335 ± 539	16,060 ± 14,610**

Data are presented as mean ± SD. Neutrophil values were available for seven CF patients

M male, F female, FEV ₁ forced expiratory volume in 1 s

^* p < 0.0005; ^** p < 0.005, relative to control