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Table 3 Age-specific prevalence of HBeAg (+) among HBsAg(+) women born in Taiwan and other Southeast Asia countries

From: Hepatitis B virus infection among pregnant women in Taiwan: Comparison between women born in Taiwan and other southeast countries

  Taiwan Southeast Asia Southeast Asia vs. Taiwan
  HBeAg(+)/HBsAg(+) (%) HBeAg(+)/HBsAg(+) (%) OR (95% CI) P-Value
Total 513/1597 (32.1 %) 66/126 (52.4 %) 2.32 (1.61–3.35) <0.001
Age (year)     
20 94/173 (54.3 %) 21/37 (56.8 %) 1.10 (0.54–2.26) 0.789
>20–25 219/579 (37.8 %) 29/60 (48.3 %) 1.54 (0.90–2.62) 0.114
>25–30 139/530 (26.2 %) 14/22 (63.6 %) 4.92 (2.02–11.99) <0.001
>30 61/315 (19.4 %) 2/7 (28.6 %) 1.67 (0.32–8.79) 0.548
Date of birth     
   Before July, 1984 496/1570 (31.6 %) 54/107 (50.5 %) 2.21 (1.49–3.27) <0.001
before 1970 56/285 (19.6 %) 0/3 (0 %) -- --
1970- before 1978 274/900 (30.4 %) 22/34 (64.7 %) 4.19 (2.04–8.58) <0.001
1978- before July 1984 166/385 (43.1 %) 32/70 (45.7 %) 1.11 (0.67–1.85) 0.687
   July, 1984 and after 17/27 (63.0 %) 12/19 (63.2 %) 1.01 (0.30–3.40) 0.989
July, 1984 – June, 1986 14/24 (58.3 %) 10/17 (58.8 %) 1.02 (0.29–3.60) 0.975
July, 1986 and after 3/3 (100 %) 2/2 (100 %) - -