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Table 3 Multiple logistic regression analyses of factors associated with occurrence of hepatitis C virus (HCV) testing, positive HCV antibodies, and viremic HCV infection

From: Prevalence of Viremic hepatitis C, hepatitis B, and HIV infection, and vaccination status among prisoners in Stockholm County

Predictor variable

Outcome variable

aOR (95% CI)

P-value

 

Occurrence of HCV testing

  

Tested for anti-HCV

n (%)

Not tested for anti-HCV

n (%)

Sexa

 Women, n = 44

27 (61.4)

17 (38.6)

1.00

 

 Men, n = 623

444 (71.3)

179 (28.7)

1.22 (0.62–2.40)

0.57

Agea (per year)

  

0.98 (0.96–0.99)

0.002

Security classa

   

< 0.001

 1, n = 293

238 (81.2)

55 (18.8)

1.00

 

 2, n = 281

189 (67.3)

92 (32.7)

0.51 (0.34–0.77)

 

 3, n = 93

44 (47.3)

49 (52.7)

0.24 (0.14–0.39)

 
 

Anti-HCV positivity

  

Anti-HCV+

Anti-HCV-

Sexb

 Women, n = 27

9 (33.3)

18 (66.7)

1.00

 

 Men, n = 444

71 (16.0)

373 (84.0)

0.62 (0.24–1.61)

0.33

Ageb (per year)

  

1.05 (1.03–1.07)

< 0.001

Security classb

   

0.13

 1, n = 238

37 (15.5)

201 (84.5)

1.00

 

 2, n = 189

39 (20.6)

150 (79.4)

1.21 (0.70–2.08)

 

 3, n = 44

4 (9.1)

40 (90.9)

0.38 (0.12–1.16)

 
 

Viremic infection

  

HCV RNA+

HCV RNA-

Sexc

 Women, n = 26

3 (11.5)

23 (88.5)

1.00

 

 Men, n = 436

50 (11.5)

386 (88.5)

1.79 (0.47–6.85)

0.39

Agec (per year)

  

1.04 (1.02–1.07)

0.001

Security classc

   

0.33

 1, n = 235

24 (10.2)

211 (89.8)

1.00

 

 2, n = 183

25 (13.7)

158 (86.3)

1.41 (0.76–2.64)

 

 3, n = 44

4 (9.1)

40 (90.9)

0.66 (0.21–2.07)

 
  1. aAmong all prisoners (n = 667)
  2. bAmong tested for anti-HCV (n = 471)
  3. cAmong tested for anti-HCV excluding nine persons who were not tested for HCV RNA among anti-HCV+ (n = 462)
  4. Abbreviations: HCV Hepatitis C virus, anti-HCV Hepatitis C virus antibodies, anti-HCV+ Hepatitis C virus antibodies positive, HCV RNA+ Hepatitis C virus RNA positive, HCV RNA- Hepatitis C virus RNA negative, aOR adjusted odds ratio, CI Confidence interval