Table 2.

Baseline characteristics of the participants included in the PREVAC trial

	Version 2.0		Version 3.0		Version 4.0		All versions
	No.	Pct.	No.	Pct.	No.	Pct.	No.	Pct.
Country
Guinea	263	49.0	1068	73.7	999	35.7	2330	48.7
Liberia	274	51.0	382	26.3	477	17.0	1133	23.7
Sierra Leone	0	0.0	0	0.0	708	25.3	708	14.8
Mali	0	0.0	0	0.0	618	22.1	618	12.9
Gender
Male	333	62.0	743	51.2	1536	54.8	2612	54.5
Female	204	38.0	707	48.8	1266	45.2	2177	45.5
Age
1–4 years	0	0.0	82	5.7	467	16.7	549	11.5
5–11 years	0	0.0	283	19.5	467	16.7	750	15.7
12–17 years	41	7.6	422	29.1	467	16.7	930	19.4
18–34 years	354	65.9	413	28.5	946	33.8	1713	35.8
35–54 years	114	21.2	187	12.9	368	13.1	669	14.0
≥ 55 years	28	5.2	63	4.3	87	3.1	178	3.7
Median (25th, 75th %)	26 (20–35)		17 (11–28)		18 (8–27)		18 (11–28)
Indicators of increased risk
Contact with case	4	0.7	7	0.5	2	0.1	13	0.3
Work entailing contact	3	0.6	1	0.1	1	0.1	5	0.1
Clinical examination Median (25th, 75th %)
Weight (kg)	64 (57–71)		54 (33–65)		52 (25–63)		54 (31–65)
Height (cm)	167 (160–173)		159 (143–168)		158 (128–168)		160 (140–169)
BMI*	22.4 (20.4–25.4)		20.2 (17.1–23.6)		20.5 (17.2–23.6)		20.7 (17.6–23.8)
Arm circumference** (cm)			15.8 (15.0–16.4)		15.5 (14.6–16.2)		15.5 (14.6–16.2)
Body temperature (o C)	36.5 (36.4–36.7)		36.5 (36.4–36.7)		36.6 (36.4–36.8)		36.6 (36.4–36.8)
Infection test results
HIV positive	14	2.6	15	1.0	25	0.9	54	1.1
Syphilis positive	11	2.0	16	1.1	18	0.6	45	0.9
No. enrolled	537		1450		2802		4789

*Age 6 years or older

**Age 5 years or younger