Assessment of serology and spirometry and the combination of both to complement microbiological isolation for earlier detection of Pseudomonas aeruginosa infection in children with cystic fibrosis

Table 3 Binary logistic regression analysis of serology, spirometry and their combination with P. aeruginosa isolation

Approach	Odds ratio	95% Confidence interval	P value
Serology	1.60	1.40–1.85	<0.01
Spirometry	0.98	0.96–1.00	<0.05
Combination of serology and spirometry	0.15	0.05–0.46	<0.01

ISSN: 1471-2466