Table 1 Demographic characteristics and factors associated with HBV infection in mothers in the birth phase, Nha Trang, Vietnam, 2009–2010 (N = 1989).
Factors | Total N (%) | HBV infection in mothers n (% n/N) | OR (95% CI) | aOR (95% CI) |
|---|---|---|---|---|
N = 1989 | n = 250 (12.6%) | |||
【Mothers】 | ||||
HBsAg | ||||
Negative | 1737 (87.4) | - | - | - |
Positive | 250 (12.6) | - | - | - |
Anti-HBs antibody (mIU/ml) | ||||
< 10 | 1033 (53.5) | 226 (21.9) | Ref | Ref |
≥ 10 | 898 (46.5) | 18 (2.0) | 0.1 (0.04, 0.1) | 0.1 (0.04, 0.1) |
Age (years old) | ||||
17–24 | 572 (28.8) | 61 (10.7) | Ref | Ref |
25–34 | 1164 (58.6) | 158 (13.6) | 1.3 (0.96, 1.8) | 1.5 (1.1, 2.1) |
35–44 | 250 (12.6) | 31 (12.4) | 1.2 (0.7, 1.9) | 1.5 (0.9, 2.6) |
Maternal Education | ||||
High school or higher | 1060 (53.5) | 110 (10.4) | Ref | Ref |
None-Junior high school | 920 (46.5) | 139 (15.1) | 1.5 (1.2–2.0) | 1.5 (1.1, 2.0) |
Residential Area | ||||
Urban | 1395 (70.2) | 176 (12.6) | Ref | - |
Suburban | 592 (29.8) | 74 (12.5) | 1.0 (0.7, 1.3) | - |
Para | ||||
Multi | 992 (49.9) | 125 (12.6) | Ref | - |
Primi | 995 (50.1) | 125 (12.6) | 1.0 (0.8, 1.3) | - |
Antenatal care | ||||
≥ 4times | 1682 (84.7) | 201 (12.0) | Ref | Ref |
< 4 times | 305 (15.4) | 49 (16.1) | 1.4 (1.0, 2.0) | 1.4 (0.96, 2.1) |
BMI in prepregnancy | ||||
Normal-High | 1475 (74.2) | 183 (12.4) | Ref | - |
Low | 512 (25.8) | 67 (13.1) | 1.1 (0.8, 1.4) | - |
Anemia | ||||
Negative | 1478 (74.4) | 191 (12.9) | Ref | - |
Positive | 509 (25.6) | 59 (11.6) | 0.9 (0.6, 1.2) | - |
Mode of delivery | ||||
Vaginal | 1156 (58.2) | 137 (11.9) | Ref | - |
Caesarian Section | 831 (41.8) | 113 (13.6) | 1.2 (0.9, 1.5) | - |
Term of delivery | ||||
Term-Postterm | 1919 (96.6) | 244 (12.7) | Ref | - |
Preterm | 68 (3.4) | 6 (8.8) | 0.7 (0.3, 1.6) | - |
