Table 1.

Serum IgG Subclass Anti-rHagB Activity at Week 6^a

entry	adjuvant	IgG1 (μg/mL)	IgG2a (μg/mL)	IgG2a/IgG1
1	none	1090 ± 140	16 ± 5	0.014 ± 0.003
2	GPI-0100	1221 ± 80	231 ± 33	0.192 ± 0.031**
3	5	1605 ± 142	238 ± 86	0.142 ± 0.048*
4	6	1219 ± 147	11 ± 2	0.010 ± 0.001

^aValues are expressed as mean ± SEM.

Statistical significance compared with no-adjuvant control group:

^*P < 0.05,

^**P < 0.01, and

^***P < 0.001.