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Table 2 Age-adjusted odds ratio of hepatitis C infection for blood route-related factors in the urban Brazilian population

From: Prevalence and risk factors of Hepatitis C virus infection in Brazil, 2005 through 2009: a cross-sectional study

Risk factors

Participants

HCV infection n (%)

ORadjusted(CI)*

p-value

Dental treatment

    

 Never

2,034

22 (1.1)

1.0

-

 Past 12 months

8,655

99 (1.1)

0.77 (0.41 – 1.47)

0.436

 Ever

8,772

114 (1.3)

0.91 (0.47 – 1.77)

0.795

Surgery

    

 Never

11,481

108 (0.9)

1.0

-

 Past 12 months

1,689

31 (1.8)

1.38 (0.72 – 2.64)

0.327

 Ever

6,270

96 (1.5)

0.93 (0.60 – 1.42)

0.730

Blood transfusion

    

 Never

18,122

196 (1.1)

1.0

-

 Past 12 months

256

10 (3.9)

1.45 (0.65 – 3.21)

0.365

 Ever

843

24 (2.9)

1.83 (1.01 – 3.30)

0.043

Hospitalization

    

 Never

13,095

143 (1.1)

1.0

-

 Past 12 months

1,308

25 (1.9)

1.87 (1.04 – 3.38)

0.037

 Ever

5,032

67 (1.3)

1.46 (0.97 – 2.19)

0.065

Endoscopy

    

 Never

16,695

190 (1.1)

1.0

-

 Past 12 months

904

13 (1.4)

1.14 (0.53 – 2.47)

0.729

 Ever

1,785

29 (1.6)

1.17 (0.64 – 2.15)

0.615

Tatoo

    

 No

18,034

202 (1.1)

1.0

-

 Yes

1,459

33 (2.3)

1.63 (0.95 – 2.80)

0.076

Body piercing

    

 No

17,859

215 (1.2)

1.0

-

 Yes

1,634

20 (1.2)

0.97 (0.51 – 1.87)

0.935

Health-care related job

    

 No

15,424

195 (1.3)

1.0

-

 Yes

1,206

20 (1.7)

0.91 (0.46 – 1.80)

0.783

  1. * Adjusted for random effect and age weighted by age groups and regions.