Figure 3.
The proportion of patients with P aeruginosa infection and normal (<40 mmol/L), borderline (40–60 mmol/L), or elevated (>60 mmol/L) sweat chloride concentration between patients with either two or zero CFTR mutations. A higher proportion of patients with P aeruginosa infection and two CFTR mutations had elevated sweat chloride concentration, whereas patients with P aeruginosa infection but without CFTR mutations were more likely to have normal sweat chloride concentration.