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. 2014 Jan 21;7:55. doi: 10.1186/1756-0500-7-55

Table 2.

Risk factors of chronic hepatitis B transmission for positive HBsAg patients

Risk factor
Positive HBs Ag patients
Negative HBsAg patients
P value
  N = 31 (%) N = 2169 (%)  
Past surgery
12 (38.7)
607 (28.0)
NS
Endoscopy
12 (38.7)
572 (26.4)
NS
Piercing
4 (12.9)
91 (4.2)
p = 0.014
Shaving
4 (12.9)
348 (16.0)
NS
Tatoo
3 (9.7)
213 (9.8)
NS
Familial exposure
2 (6.4)
33 (1.5)
p < 0.001
Using drugs intraveinously 0 (0.0) 1(0.0) NS

NS, Not significant.