TABLE 1

Adherence of Pseudomonas aeruginosa TBCF121838 to cystic fibrosis (CF) buccal epithelial cells

Subjects	Bound TBCF121838 bacteria per buccal epithelial cell
	0–10	10–20	20–40	>40
CF patients
P. aeruginosa negative	10	2
<24 months P. aeruginosa positive	7	2
>36 months P. aeruginosa positive	1^#+1^¶	2	5	2
Acute upper airway infection				4
Non-CF controls
Healthy	19
Acute upper airway infection			2	3
Trypsinised buccal cells				6

Data are presented as numbers of subjects. ^#: single patient of the cohort who chronically inhaled tobramycin; no P. aeruginosa had been detected in patient's sputum at the day of investigation. ^¶: single patient in this group classified as having a CF transmembrane conductance regulator-related disorder [8].