Table 2.

Hazard ratios for risk of P. aeruginosa occurrence post eradication treatment.

Antigen		Hazard ratio	Hazard ratio 95% CI	p-value
E-15	Alkaline protease	2.19	(1.30, 3.71)	0.003
	Elastase	1.66	(0.99, 2.78)	0.055
	Exotoxin A	2.50	(1.42, 4.39)	0.001
	Combined	1.68	(0.96, 2.95)	0.072
MCW	PopB+ExoS	1.51	(0.89, 2.56)	0.120
	PAO1 cell lysate	1.61	(0.97, 2.68)	0.068
	MCW exotoxin A	1.69	(0.89, 3.18)	0.106
	Combined	1.38	(0.83, 2.31)	0.219

Post-eradication is week 10 onward. Each hazard ratio is attributable to baseline seropositivity against the individual antigens, combined E-15 ELISA, and MCW ELISA. A combined ELISA is defined as seropositive if any one of the three antibodies in an ELISA has titer at least 100.