Table 1.

Summary of demographic characteristics per protocol cohorts for immunogenicity

Parameter	Result for:
	Study A		Study B
	AS03A-adjuvanted H1N1 vaccine (3.75 μg HA)	Nonadjuvanted H1N1 vaccine (15 μg HA)	AS03A-adjuvanted H1N1 vaccine (3.75 μg HA)	Nonadjuvanted H1N1 vaccine (3.75 μg HA)
Age at vaccination (yr)
Mean (SD)	40.1 (13.40)	38.2 (14.10)	37.2 (14.27)	38.7 (13.70)
Median (range)	44.5 (19–60)	40.5 (18–60)	41.0 (18–60)	41.0 (20–60)
Gender (%)
Female	65.0	59.1	65.6	54.0
Male	35.0	40.9	34.4	46.0
Geographic ancestry (%)
Asian-East Asian	0.0	1.5	0.0	1.6
White-Caucasian/European	100	98.5	100	98.4