Hepatitis B Infection and Mother-to-Child Transmission in Haiphong, Vietnam: A Cohort Study with Implications for Interventions
Table 4
Some characteristics of mother-infant pairs whose infants are HBV infected ().
No.
Mothers’ characteristics
Infants’ characteristics
Maternal HBeAg status at 7th month of gestation
HBV DNA level at 7th month of gestation
Antiviral treatment
Maternal HBeAg status at delivery
HBV DNA level at delivery
Family member infected with HBV†
Mode of delivery
Infant’s sex
BDV‡
HBIG#
Completed HBV vaccine schedule
Infant feeding
Infant HBeAg status at 12 months of age
1
Positive
1,174,000
Yes
Positive
82,400
No
Caesarean
Female
Yes
Yes
Yes
Mixed
Negative
2
Positive
47,600
No
Positive
1,756,000
Yes
Caesarean
Female
Yes
Yes
Yes
Breast-fed
Positive
3
Positive
30,000
No
Positive
24,600
No
Vaginal
Female
Yes
No
Yes
Breast-fed
Negative
4
Positive
420
No
Positive
Undetectable
Yes
Caesarean
Male
Yes
Yes
No
Mixed
Negative
5
Negative
Undetectable
No
Positive
402
No
Vaginal
Female
Yes
No
Yes
Mixed
Negative
6
Positive
Undetectable
No
Positive
Undetectable
No
Vaginal
Male
Yes
Yes
Yes
Breast-fed
Negative
7
Negative
Undetectable
No
Positive
Undetectable
Yes
Vaginal
Female
Yes
No
No
Mixed
Negative
8
Positive
Undetectable
No
Positive
Undetectable
No
Vaginal
Male
Yes
No
Yes
Mixed
Positive
9
Negative
Undetectable
No
Positive
Undetectable
No
Vaginal
Male
Yes
Yes
Yes
Bottle-fed
Negative
10
Positive
Undetectable
No
Positive
Undetectable
No
Vaginal
Female
Yes
Yes
Yes
Breast-fed
Negative
11
Negative
Undetectable
No
Negative
Undetectable
Yes
Vaginal
Female
No
No
Yes
Bottle-fed
Negative
12
Negative
Undetectable
No
Negative
Undetectable
Yes
Caesarean
Male
Yes
Yes
Yes
Bottle-fed
Negative
Test results in IU/mL or undetectable (under limit of detection); †having any family member known being HBV infected (including husband/partner); ‡BDV: birth dose vaccination; #HBIG: hepatitis B immunoglobulin immunization.
