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Table 4 Distribution of donors according to HBsAg, HBeAg, anti-HBc and anti-HBs reactivity and age groupsa

From: Hepatitis B virus strains from Rwandan blood donors are genetically similar and form one clade within subgenotype A1

  HBsAg HBeAg Anti-HBs positive
Age group (years) All donors Positive N (%) N Positive N (%) N Anti-HBc positive N (%) Anti-HBc negative N (%)
18–25 263 60 (22.8) 56 20 (35.7) 203 32 (15.8) 4 (2.0)
26–35 296 51 (17.2) 49 11 (22.4) 245 52 (21.2) 15 (6.1)
36–45 130 26 (20.0) 25 1 (4.0) 104 28 (26.9) 6 (5.8)
46–55 27 2 (7.4) 2 0 (0.0) 25 8 (32.0) -
56–65 4 0 (0.0) - - 4 2 (50.0) -
Total 720 139 (19.3) 132 32 (24.2) 581 122 (21.0) 25 (4.3)
  1. aProportions calculated with a denominator on the same row in the precedent adjacent column nN)