TABLE 1.

Pseudomonas aeruginosa incidence rates, study activity and age according to P. aeruginosa status

P. aeruginosa status	Recruits	Age years median (IQR)	Study activity		P. aeruginosa incidence cases per patient-year (95% CI)
			Total visits	Visits per patient-year median (IQR)
Never	113	6.4 (4.0–10.9)	962	4.5 (3.1–5.4)	0.15 (0.10–0.22)
FF	99	8.1 (5.3–12.5)	910	5.0 (3.7–5.6)	0.19 (0.13–0.27)
FFT	21	13.1 (10.6–15.5)	214	5.9 (3.2–6.5)	0.41 (0.20–0.73)
Total	233	8.0 (5.0–12.2)	2086	4.8 (3.1–5.6)	0.19 (0.15–0.23)

Data are presented as n unless otherwise stated. IQR: interquartile range; FF: Free From; FFT: Free From But Treated.