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Table 2 Results of hepatitis B serology among 911 mother- child pairs in central Lao PDR

From: Serologic testing of randomly selected children after hepatitis B vaccination: a cross-sectional population-based study in Lao People’s Democratic Republic

Result of hepatitis B serology Total (n = 911) Undocumented vaccination history of child (n = 740) Documented vaccination history of child(n = 171)
No doses (n = 10) 1 dose (n = 5) 2 doses (n = 9) ≥ 3 doses (n = 147)
n (%) n (%) n (%) n (%) n (%) n (%)
Mother HBsa antigen positive 40 (4.4) 32 (4.3) 0 (0.0) 0 (0.0) 1 (11.1) 7 (4.8)
Children HBsa antigen positive 21 (2.3) 19 (2.6) 0 (0.0) 0 (0.0) 0 (0.0) 2 (1.4)
Children anti-HBsa positive
 Cutoff value > 10 mIU/mL 6 (0.7) 6 (0.8) 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0)
 Cutoff value > 3.45 mIU/mLb 12 (1.3) 11 (1.5) 0 (0.0) 0 (0.0) 0 (0.0) 1 (0.7)
  1. aHepatitis B surface
  2. bCutoff value was decided from our linear regression model