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Table 1 Characteristics of participants (n = 743) according to HBsAg status

From: Prevalence of chronic HBV infection in pregnant woman attending antenatal care in a tertiary hospital in Mwanza, Tanzania: a cross-sectional study

 TotalHBsAg positiveHBsAg negativep-value
n(%) n (%) n (%) 
Age (years), mean ± SD26.98 ± 6.0327.45 ± 5.426.97 ± 6.050.704
 18–20106(14.3)1(4.5) 105 (14.6) 
 21–30447(60.2)16(72.7) 431 (59.8) 
 31–40172(23.1)4(18.2) 168 (23.3) 
 > 4018(2.4)1(4.5) 17 (2.4) 
HIV statusa
 HIV positive42(5.8)2(9.1) 40 (5.7)0.509
 HIV negative678(94.2)20(90.9) 658 (94.3) 
Residenceb
 Urban710(95.7)21(95.5) 689 (95.7)0.957
 Rural32(4.3)1(4.5) 31 (4.3) 
Marital statusc
 Single + Divorced + Widowed48(6.5)3(13.) 45 (6.3)0.170
 Cohabiting + Married689(93.5)19(86.4) 670 (93.7) 
Educationd
 Non-formal37(5.0)1(4.5)3636 (5.0)0.845
 Primary314(42.4)9(40.9)305305 (42.5) 
 Secondary + College389(52.6)12(54.5)377377 (52.5) 
Worke
 Health sector26(3.5)2(9.1)2424 (3.3)0.080
 Employed403(54.4)14(63.6)389389 (54.1) 
 Non employed/house wife312(42.1)6(27.3)306306 (42.6) 
Gravidaf
 One271(36.5)10(45.5)261261 (36.3)0.199
 Two or more419(59.4)12(54.5)459459 (63.7) 
Parag
 Zero299(40.3)12(54.5)287287 (39.9)0.097
 One or more491(59.7)10(45.5)453453 (60.1) 
Number of sexual partner
 One287(38.6)7(31.8%)280280 (38.8)0.505
 Two-three372(50.1)12(54.5)360360 (49.9) 
 Four or more84(11.3)3(13.6)8181 (11.2) 
Age of first sexual contacth
 Under 1529(3.9)0(0.0)2929 (4.0)0.348
 15 or above712(96.1)21(100)691691 (96.0) 
HBV vaccinationi
 Received at least one vaccination14(2.0)0(0.0)1414 (1.9)0.507
 No vaccination687(98.0)21(100)666666 (97.9) 
History of STIsj
 Yes35(4.8)2(9.1)3333 (4.6)0.334
 No699(95.2)20(90.9)679679 (95.4) 
Condom usek
 Always4(0.5)0(0.0)44 (0.6)0.725
 Sometimes + never733(99.5)22(100)711711 (99.4) 
Female genital mutilationl
 Yes23(3.1)1(4.5)2222 (3.1)0.703
 No708(96.9)21(95.5)687687 (96.9) 
Sharing toothbrushm
 Yes91(12.4)3(13.6)8888 (12.3)0.856
 No644(87.6)19(86.4)625625 (87.7) 
Sharing razorn
 Yes162(21.9)3(13.6)159159 (22.1)0.342
 No578(78.1)19(86.4)559559 (77.9) 
History of jaundiceo
 In the family73(9.9)2(9.1)71(9.9)0.842
 None668(90.1)20(90.9)648(90.1) 
General risk from blood containing proceduresp
 Risky procedure in the past161(22.5)6(27.3)155(22.3)0.583
 No risky procedure in the past556(77.5)16(72.7)540(77.7) 
  1. a23 missing
  2. b1 missing
  3. c6 missing
  4. d3 missing
  5. e2 missing
  6. f1 missing
  7. g1 missing
  8. h2 missing
  9. i42 missing
  10. j9 missing
  11. k6 missing
  12. l12 missing
  13. m8 missing
  14. n3 missing
  15. o2 missing
  16. p26 missing