Table 1 Factors associated with HBsAg seropositivity in Madagascar, 2011–2013
N | HBsAg- positive, n (weighted %) | Crude odds ratios | Odds ratios adjusted for age and sex | |||
|---|---|---|---|---|---|---|
OR (95% CI) | p-value | OR (95% CI) | p-value | |||
Age (years) | 0.5* | 0.4* | ||||
18–24 | 380 | 38 (7.1) | 1.00 | 1.00 | ||
25–34 | 475 | 41 (7.4) | 1.05 (0.50–2.22) | 1.08 (0.50–2.34) | ||
35–44 | 379 | 26 (7.5) | 1.06 (0.58–1.97) | 1.09 (0.59–2.01) | ||
≥ 45 | 542 | 36 (6.0) | 0.84 (0.42–1.65) | 0.82 (0.42–1.61) | ||
Gender | 0.3 | 0.3 | ||||
Female | 879 | 58 (5.8) | 1.00 | 1.00 | ||
Male | 899 | 83 (8.1) | 1.42 (0.75–2.68) | 1.43 (0.76–2.67) | ||
Education | 0.7* | 0.4* | ||||
Illiterate | 233 | 18 (5.5) | 1.00 | 1.00 | ||
Primary | 668 | 62 (8.6) | 1.62 (0.81–3.21) | 1.62 (0.80–3.25) | ||
Secondary | 794 | 49 (5.2) | 0.96 (0.47–1.96) | 0.91 (0.44–1.88) | ||
University | 81 | 12 (13.5) | 2.70 (1.05–6.97) | 2.48 (0.93–6.61) | ||
SES | 0.03* | 0.03* | ||||
Low | 935 | 81 (9.4) | 1.00 | 1.00 | ||
Middle | 753 | 57 (6.6) | 0.69 (0.41–1.15) | 0.70 (0.42–1.17) | ||
High | 90 | 3 (3.8) | 0.38 (0.13–1.10) | 0.39 (0.14–1.11) | ||
Area | 0.04* | 0.04* | ||||
Urban | 482 | 26 (6.0) | 1.00 | 1.00 | ||
Semi-urban | 516 | 39 (7.2) | 1.22 (0.70–2.12) | 1.23 (0.71–2.11) | ||
Rural | 780 | 76 (9.8) | 1.71 (1.11–2.64) | 1.69 (1.09–2.60) | ||