Table 2

Prevalence ratios* for risk factors in HBV-positive and HBV-negative groups.

HBV-positive† (n = 616)
 HBV-negative §(n = 933)
 HBV-positive Versus HBV-negative*


n
 %
 n
 %
 PR
 95% CI
 P
Male gender'
 389
 63
 437
 47
 1.4
 1.24 – 1.50
 < .0001
Blood transfusion
 94
 15
 132
 14
 1.0
 0.79 – 1.29
 0.90
Surgery
 249
 40
 343
 37
 1.1
 0.93 – 1.18
 0.42
Health-care professional
 46
 8
 73
 8
 1.3
 0.87 – 1.84
 0.21
Hemodialysis
 55
 9
 69
 8
 1.3
 0.84 – 1.97
 0.27
IDU
 7
 1
 5
 0.5
 1.9
 0.58 – 5.90
 0.31
Intranasal cocaine use
 28
 5
 24
 3
 1.6
 0.93 – 2.74
 0.11
Tattoo
 24
 4
 25
 3
 1.5
 0.85 – 2.63
 0.17
STD
 61
 10
 65
 7
 1.1
 0.75 – 1.46
 0.78
Multiple sexual partners
 72
 12
 58
 6
 1.5
 1.06 – 2.07
 0.02
Homosexuality
 20
 3
 20
 2
 1.1
 0.58 – 1.95
 0.87
Non or incomplete schooling
 363
 59
 536
 58
 1.00
 0.89 – 1.05
 0.47
Monthly wage (< 225 U$)
 284
 46
 447
 48
 0.95
 0.86 – 1.06
 0.39
Living in AP3 region
 210
 34
 311
 34
 1.00
 0.86–1.15
 0.96

*adjusted for age and gender †HBV-positive = positive for HBsAg and/or IgM anti-HBc and/or total anti-HBc §HBV-negative = HBsAg and anti-HBc negative PR = prevalence ratio (adjusted); P = p value; CI = confidence interval

Lewis-Ximenez et al. BMC Public Health 2002 2:26   doi:10.1186/1471-2458-2-26