Immunoprophylaxis failure and vaccine response in infants born to mothers with chronic hepatitis B infection in Djibouti

Table 1 Sociodemographic characteristics of the hepatitis B surface antigen-positive pregnant women, n = 50

Variables	Frequency	%
Age of mother in yr, n = 46
18-20	1	2
20-30	21	46
30-40	21	46
> 40	3	6
Mother occupation
Employed	31	62
Unemployed	19	38
Mother education level
Illiterate	22	44
Primary	5	10
Secondary	18	36
University	5	10
Parity
Nulli or primiparous 0-1	7	14
Multiparous 1-3	31	62
Large multiparous	12	24
First antenatal care
1 trimester	16	32
2 trimester	16	32
3 trimester	18	36
History of blood transfusion
Yes	14	28
No	36	72
History of abortion
Yes	15	30
No	35	70
Family history of HBV
Yes	17	34
No	33	66
Vaccination against HBV
Yes	0	0
No	50	100
Marital status of mother
Married	50	100
Not married	0	0
Monitoring by a health care worker
Yes	50	100
No	0	0
HBeAg status of mother
Negative	47	94
Positive	3	4
Viral load HBV DNA
< 200000	47	94
> 200000	3	6

HBeAg: Hepatitis B e antigen; HBV: Hepatitis B virus.