Table 2.
Factors associated with HBsAg positivity amongst pregnant women in Siem Reap, Cambodia
| Variables | Total (N = 1565) |
HBsAg ( +) | Univariable analysis (N = 1565) | Multivariable analysis (N = 1506) | ||||
|---|---|---|---|---|---|---|---|---|
| n (%) | OR | [95% CI] | p-value | AOR | [95% CI] | p-value | ||
| Age (mean = 28.3 ± 5.7) | ||||||||
| 15–19 | 70 | 0 (0) | 0 | - | - | 0 | - | - |
| 20–24 | 338 | 15 (4.44) | 1 | (Reference) | - | 1 | (Reference) | - |
| 25–29 | 540 | 20 (3.70) | 0.83 | [0.42–1.64] | 0.589 | 0.79 | [0.39–1.58] | 0.501 |
| 30–34 | 391 | 20 (5.12) | 1.16 | [0.58–2.30] | 0.670 | 1.14 | [0.57–2.28] | 0.711 |
| 35–39 | 180 | 10 (5.56) | 1.27 | [0.55–2.88] | 0.573 | 1.36 | [0.59–3.19] | 0.468 |
| ≥ 40 | 46 | 2 (4.35) | 0.98 | [0.22–4.42] | 0.978 | 1.19 | [0.25–5.61] | 0.818 |
| Education level | ||||||||
| ≤ Primary School | 324 | 13 (4.01) | 1 | (Reference) | - | 1 | (Reference) | - |
| High School | 857 | 35 (4.08) | 1.02 | [0.53–1.95] | 0.956 | 0.99 | [0.49–1.98] | 0.984 |
| University | 384 | 19 (4.95) | 1.25 | [0.61–2.56] | 0.551 | 1.37 | [0.61–3.03] | 0.441 |
| Occupation of Household | ||||||||
| Farmer/Fisherman/Laborer | 255 | 6 (2.35) | 1 | (Reference) | - | 1 | (Reference) | - |
| Public Officer | 217 | 10 (4.61) | 2.00 | [0.72–5.61] | 0.185 | 2.18 | [0.73–6.40] | 0.158 |
| Privat Company Employee | 495 | 26 (5.25) | 2.30 | [0.93–5.66] | 0.070 | 2.37 | [0.92–6.11] | 0.074 |
| Self-Employed | 598 | 25 (4.18) | 1.81 | [0.73–4.47] | 0.198 | 1.92 | [0.75–4.91] | 0.171 |
| Number of children | ||||||||
| 1–3 | 1469 | 63 (4.29) | 1 | (Reference) | - | - | - | - |
| ≥ 4 | 96 | 4 (4.17) | 0.97 | [0.35–2.72] | 0.954 | - | - | - |
| Blood transfusion history | ||||||||
| No | 1527 | 65 (4.26) | 1 | (Reference) | - | - | - | - |
| Yes | 38 | 2 (5.29) | 1.25 | [0.29–5.30] | 0.763 | - | - | - |
| Surgical history | ||||||||
| No | 1361 | 62 (4.56) | 1 | (Reference) | - | 1 | (Reference) | - |
| Yes | 204 | 5 (2.45) | 0.53 | [0.21–1.33] | 0.173 | 0.5 | [0.19–1.28] | 0.152 |
| Ever received HepB | ||||||||
| Yes | 236 | 3 (1.27) | 0.25 | [0.08–0.81] | 0.020 | 0.22 | [0.06–0.72] | 0.011 |
| No | 1313 | 64 (4.87) | 1 | (Reference) | - | 1 | (Reference) | - |
| Don’t know | 16 | 0 (0) | 0 | - | - | - | - | - |
Adjusted for: age, education level, occupation of Household, Surgical history, and ever received HBV vaccine
OR Odd ratio, AOR Adjusted odds ratio, CI Confident interval, HBsAg Hepatitis B surface antigen, HepB Hepatitis B vaccine