Table 3. Geometric mean titers (mIU/mL) per group, and ratio of each group to the reference vaccine.

Group IU/dose	GMT (mIU/mL)	95% CI (mIU/mL)	GMT ratio to the reference group	95% CI
27,476 IU	13,479.2	11,078.9; 16,399.5
10,447 IU	12,190.6	10,153.3; 14,636.6	0.904	0.691; 1.184
3013 IU	11,607.5	9630.9; 13,989.8	0.861	0.658; 1.127
587 IU	12,145.0	9988.4; 14,767.3	0.901	0.684; 1.187
158 IU	6837.3	5044.5; 9267.3	0.507*	0.354; 0.727
31 IU	1970.2	1292.2; 3000.6	0.146*	0.092; 0.232

*p = 0.000