Table 3.

Risk factors for Pseudomonas aeruginosa colonization

Risk factors for Pseudomonas aeruginosa colonization	Univariate analysis Odd ratios and 95% CI	p values	Multivariate analysis	p values
Female	1.919 (1.146–3.211)	0.013
Longer duration of bronchiectasis*	1.077 (1.053–1.102)	< 0.001	1.028 (1.013–1.042)	< 0.001
PPI use*	2.340 (1.326–4.127)	0.003	2.144 (1.198–3.835)	0.010

*Factors that were statistically significant after adjustment for age, sputum volume, FEV₁/FVC ratio, extent of lung involvement, frequency of exacerbations and prior use of anti-pseudomonal antibiotics within one year of isolation of Pseudomonas aeruginosa