Table 4 Risk characteristics between HBV-infected and non-infected

History Sharing injected needles

Yes

14(29.2%)

44(9.9%)

58(11.7%)

< 0.001*

No

34(70.8%)

402(90.1%)

436(88.3%)

Ensuring the barber changing the blade

Yes (Every time)

16(33.3%)

148(33.2%)

164(33.2%)

0.002*

Yes (Sometimes)

20(41.7%)

93(20.9%)

113(22.9%)

No

12(25.0%)

205(46.0%)

217(43.9%)

History Sharing sharp equipment

Yes

33(68.8%)

82(18.4%)

115(23.3%)

< 0.001*

No

15(31.2%)

364(81.6%)

379(76.7%)

History of tooth extraction

Yes

33(68.8%)

66(14.8%)

99(20.0%)

< 0.001*

No

15(31.2%)

380(85.2%)

395(80.0%)

History of tissue transplantation

Yes

19(39.6%)

88(19.7%)

107(21.7%)

0.002*

No

29(60.4%)

358(80.3%)

387(78.3%)

History of hemodialysis

Yes

1(2.1%)

1(0.2%)

2(0.4%)

0.185

No

47(97.9%)

445(97.9%)

492(99.6%)

History of surgical operation

Yes

19 (39.6%)

83 (18.6%)

102 (20.6%)

0.001*

No

29 (60.4%)

363 (81.4%)

392 (79.4%)

History of hospitalized

Yes

21 (43.8%)

88 (19.7%)

109 (22.1%)

0.001*

No

27 (56.2%)

358 (80.3%)

385 (77.9%)

HBV-infected family member

Yes

13 (271.1%)

71 (15.9%)

84 (17.0%)

0.118

No

31 (64.6%)

345 (77.4%)

376 (76.1%)

I do not know

4 (8.3%)

30 (6.7%)

34 (6.9%)

History of sharing accidental needle injury

Yes

20 (41.7%)

67 (15.0%)

87 (17.6%)

< 0.001*

No

28 (58.3%)

379 (85.0%)

407 (82.4%)