Table 3. Estimated prevalence of HCV-Ab.
| Absolute number |
Estimated prevalence | ||
|---|---|---|---|
| Weighted % | 95% CI | ||
| Overall | 1,927 | 1.57 | 0.45–5.30 |
| Sex | |||
| Female | 1,016 | 0.37 | 0.06–2.37 |
| Male | 1,001 | 2.85 | 0.71–10.71 |
| Age (years) | |||
| 1–4 | 342 | 0 | |
| 5–9 | 179 | 0 | |
| 10–14 | 120 | 0 | |
| 15–19 | 328 | 0 | |
| 20–24 | 122 | 0 | |
| 25–29 | 185 | 0 | |
| 30–34 | 167 | 3.78 | 0.45–25.62 |
| 35–39 | 115 | 0.71 | 0.09–5.52 |
| 40– | 369 | 6.10 | 2.05–16.76 |
| Place of residence (region) | |||
| Northern | 525 | 0.72 | 0.18–2.90 |
| Central | 956 | 0.51 | 0.22–1.18 |
| Southern | 446 | 3.27 | 0.63–15.29 |
| Ethnicity | |||
| Laoloum | 1,121 | 0.87 | 0.38–1.96 |
| Khmu | 293 | 0 | |
| Hmong | 322 | 1.14 | 0.20–6.15 |
| Others | 191 | 4.68 | 0.63–27.67 |
| Operation history | |||
| Yes | 122 | 0.90 | 0.10–7.45 |
| No | 1,805 | 1.62 | 0.45–5.62 |
| Blood transfusion history | |||
| Yes | 101 | 0.30 | 0.03–2.84 |
| No | 1,826 | 1.56 | 0.42–5.71 |
| Sharing a toothbrush | |||
| Yes | 107 | 0 | - |
| No | 1,820 | 1.68 | 0.48–5.70 |
| Tattoo | |||
| Yes | 133 | 1.08 | 0.23–4.96 |
| No | 1,794 | 1.99 | 0.56–6.79 |
| Sharing a razor | |||
| Yes | 49 | 0 | - |
| No | 1,878 | 1.97 | 0.57–6.55 |
| Sharing needle for drug injection | |||
| Yes | 47 | 4.78 | 0.81–23.46 |
| No | 1,880 | 1.80 | 0.46–6.75 |
HCV-Ab, hepatitis C antibody; CI, confidence interval.