Table 3. Avidity index of OprF/I-specific IgG antibodies at day 7 and day 14 by treatment group (per protocol population; subgroup of subjects with detectable OprF/I-specific IgG antibodies at day 7 and day 14).

Day	Statistic	IC43 100 µg (n = 5)	IC43 100 µg w/o (n = 11)	IC43 200 µg (n = 7)	IC43 50 µg (n = 3)
7	Median	0.64	0.93	1.49	0.10
	IQR	0.59 − 1.87	0.71 − 1.23	1.12 − 2.72	0.10 − 2.03
14	Median	1.56	1.45	2.55	0.10
	IQR	0.85 − 2.43	0.89 − 2.19	1.91 − 3.16	0.10 − 2.82

Note: An index of low (defined as >50% stripping with a concentration of 0.5 M ammonium thiocyanate) was set to 0.1 M; an index of high (<50% stripping with 4 M ammonium thiocyanate) was set to 4.5 M. IgG, immunoglobulin G; IQR, interquartile range; OprF/I, outer membrane protein OprF/I hybrid vaccine; w/o, without adjuvant.