Table 3.
Marker prevalence by volunteer self-report history.
| Infectious status | N | HbsAg | Anti-HBc | Anti-HBs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| n | % | 95% CI | n | % | 95% CI | n | % | 95% CI | ||
| Experienced hepatitis B | 28 | 6 | 21.4* | 10.2–39.5 | 22 | 78.6* | 60.5–89.8 | 12 | 42.9* | 26.5–60.9 |
| Never experienced hepatitis B | 2,468 | 17 | 0.7 | 0.4–1.1 | 189 | 7.7 | 6.7–8.8 | 527 | 21.4 | 19.8–23.0 |
| Information not available | 37 | 2 | 5.4 | 1.5–17.7 | 9 | 24.3* | 13.4–40.1 | 8 | 21.6 | 11.4–37.2 |
| Total | 2,533 | 25 | 1.0 | 0.7–1.5 | 220 | 8.7 | 7.6–9.9 | 547 | 21.6 | 20.0–23.25 |
*Significantly higher than the total value. #Significantly lower than the total value; p < 0.05 for all comparisons.