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Table 2 Prevalence of HBsAg according to different characteristics among participants in 24 districts in Rwanda

From: Prevalence of hepatitis B surface antigen (HBsAg) positivity and its associated factors in Rwanda

Characteristics

Frequencies

Bivariate analysis

Multivariate analysis

Frequency

HBsAg positive (%)

OR

(95% CI)

OR

(95% CI)

Overall HBV prevalence (N = 327360)

 Negative

314,420

96.1

    

 Positive

12,865

3.9

 

(3.83–3.97)

  

Gender (N = 326100)

 Female

224,335

7996(3.6)

1

 

1

 

 Male

101,765

4813(4.3)

1.343

(1.295–1.393)

1.353

(1.301–1.408)

Age group (N = 317356)

 < 35 years

92,220

3737(4.1)

1

 

1

 

 35–44 years

79,638

3321(4.2)

1.030

(0.982–1.081)

1.039

(0.988–1.105)

 45–54 years

61,889

3321(4.2)

0.956

(0.908–1.008)

0.976

(0.923–1.109)

 55–64 years

50,544

1782(3.5)

0.865

(0.817–0.917)

0.895

(0.841–0.952)

 65+ years

33,065

1229(3.7)

0.914

(0.856–0.976)

0.923

(0.861–0.965)

Marital status (N = 319229)

 Single

28,184

1217(4.3)

1

 

1

 

 Married

247,377

9813(4.0)

0.915

(0.861–0.973)

1.064

(0.975–1.161)

 Widow, Divorced and separated

43,668

15,643.6)

0.823

(0.763–0.889)

0.985

(0.927–1.047)

Ubudehe category (N = 318784)

 Category 1

49,881

1849(3.7)

1

 

1

 

 Category 2

119,622

4706(3.9)

1.051

(1.007–1.124)

1.019

(0.994–1.112)

 Category 3

149,047

5950(4.0)

1.053

(1.024–1.139)

1.03

(0.996–1.114)

 Category 4

234

12(5.1)

1.372

(0.784–2.515)

2.127

(0.765–2.463)

Health Insurance(N = 323879)

 Mutuelle

303,140

11,927(3.9)

1

 

1

 

 RAMA

14,701

569(3.9)

0.983

(0.902–1.071)

0.893

(0.815–0.978)

 MMI

2573

109(4.2)

1.08

(0.891–1.310)

1.013

(0.828–1.238)

 MEDIPLAN and other private insurances

3465

132(3.8)

0.967

(0.812–1.152)

0.874

(0.717–1.067)

Province of screening (N = 313945)

 North

65,812

2471(3.8)

1

 

1

 

 West

89,857

3415(3.8)

1.013

(0.961–1.068)

0.993

(0.941–1.049)

 South

48,963

1648(3.4)

0.893

(0.863–0.951)

0.956

(0.892–1.025)

 East

110,334

4783(4.3)

1.162

(1.105–1.221)

1.132

(1.075–1.192)

Diabetes (N = 326,851)

 No

324,985

12,765(3.9)

1.000

   

 Yes

1866

82(4.4)

1.124

(0.900–1.404)

  

High Blood pressure (N = 326856)

 No

317,348

12,480(3.9)

1.000

   

 Yes

9508

370(3.9)

0.989

(0.890–1.099)

  

CRF (N = 326855)

 No

322,718

12,648(3.9)

1.000

   

 Yes

4137

202(4.9)

1.258

(1.091–1.451)

  

Suffering from Cancer (N = 326826)

 No

326,248

12,821(3.9)

1

   

 Yes

578

27(4.7)

1.198

(0.814–1.764)

  

HCV infection(326193)

 Negative

313,355

12,061(4.0)

1

 

1

 

 Positive

12,838

777(3.5)

0.879

(0.816–0.946)

0.880

(0.812–0.924)

HIV status (N = 326838)

 Negative

320,242

12,570(3.9)

1

 

1

 

 Positive

6596

279(4.2)

1.081

(0.958–1.220)

0.835

(0.541–1.290)

Ever had TBC (N = 326844)

 No

326,506

12,813(3.9)

1.000

 

1.000

 

 Yes

338

35(10.4)

2.828

(1.992–4.015)

2.352

(1.634–3.385)

Ever been operated (N = 326838)

 No

308,966

12,066(3.9)

1.000

 

1.000

 

 Yes

17,872

781(4.4)

1.124

(1.044–1.211)

1.082

(1.000–1.171)

Ever been transfused (N = 326847)

 No

321,500

12,590(3.9)

1.000

 

1.000

 

 Yes

5347

258(4.8)

1.244

(1.096–1.411)

1.122

(0.980–1.284)

Ever been traditionally operated (N = 326577)

 No

272,493

10,363(3.8)

1.000

 

1.000

 

 Yes

54,084

2477(4.6)

1.214

(1.161–1.270)

1.187

(1.133–1.244)

Having more than 1 sexual partner (N = 326710)

 No

317,958

12,428(3.9)

1.000

 

1.000

 

 Yes

8752

416(4.8)

1.227

(1.110–1.356)

1.074

(0.968–1.191)

Viral Hepatitis in the family (N = 326807)

 No

320,622

12,494(3.9)

1.000

 

1.000

 

 Yes

6185

353(5.7)

1.493

(1.339–1.665)

1.367

(1.221–1.531)