Table 1

 Clinical data of 183 patients with CF according to their P aeruginosa status

Free(n = 68)Intermittent(n = 27)Chronic†(n = 88)
*Data expressed as mean (range).
†Duration of infection for median of 11.5 years (range 1.5–26).
There were significant differences between the groups in FEV1 depending on age (p = 0.025) but not group membership (p = 0.35, two way ANOVA).
Classified according to sputum (n)11560
Classified according to swab (n)572228
Age (years)*11.4 (2–29)14.5 (2–41)21.5 (3–38)
Weight for height (%)*103 (62–130)107 (88–148)105 (78–158)
FEV1 (% predicted)*97 (62–147)94 (48–143)75 (21–128)
IgG (mg/dl)*842 (294–1962)966 (296–2440)1293 (654–2575)
C-reactive protein (mg/dl)*0.18 (0.00–1.36)0.14 (0.01–0.58)0.64 (0.00–3.90)
Detection of mucoid strains (n/N)0/6815/2784/88