Table 2 Univariate and multivariate logistic regression models showing the association of HBV infection with sex and birth date

 Born before July 1986

1

1

 Born after July 1986

0.05 (0.05–0.06)

< 0.001

0.16 (0.13–0.19)

< 0.001

 Women

1

1

 Men

0.94 (0.90–0.98)

0.002

1.40 (1.34–1.47)

< 0.001

 17–29

1

1

 30–65

17.95 (17.02–18.92)

< 0.001

1.66 (1.35–2.05)

< 0.001

 A

1

1

 B

0.97 (0.91–1.02)

0.227

0.96 (0.91–1.02)

0.207

 O

1.01 (0.96–1.07)

0.621

1.02 (0.97–1.07)

0.526

 AB

0.97 (0.88–1.06)

0.503

0.97 (0.88–1.07)

0.582

  ≤ 24

1

1

  > 24

1.99 (1.91–2.08)

< 0.001

1.08 (1.04–1.13)

< 0.001

ALT (U/L)

1.01 (1.01–1.01)

< 0.001

1.01 (1.01–1.01)

< 0.001

 Northern

1

1

 North-Central

1.05 (0.98–1.12)

0.143

1.16 (1.08–1.24)

< 0.001

 Central

1.02 (0.96–1.08)

0.471

1.28 (1.20–1.36)

< 0.001

 Central-South

1.06 (0.99–1.13)

0.069

1.39 (1.30–1.48)

< 0.001

 Southern

0.92 (0.86–0.98)

0.012

1.24 (1.16–1.33)

< 0.001

 Eastern

1.03 (0.90–1.18)

0.667

1.41 (1.22–1.62)

< 0.001

 Island

0.76 (0.55–1.05)

0.098

1.03 (0.74–1.43)

0.865

 Service worker

1

1

 Student

0.06 (0.05–0.06)

< 0.001

0.29 (0.26–0.33)

< 0.001

 Military/civil servant/teacher

0.25 (0.23–0.27)

< 0.001

0.69 (0.63–0.75)

< 0.001

 Laborer/farmer and fisherman

1.43 (1.35–1.53)

< 0.001

1.03 (0.96–1.10)

0.447

 Business/technician/specialist

1.01 (0.93–1.09)

0.810

0.76 (0.71–0.83)

< 0.001

 Others (including housekeepers)

1.07 (1.01–1.14)

0.027

0.93 (0.88–0.99)

0.027