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Table 1 Age, sex, donor category and test results of the individuals who donated blood (n = 1599)

From: Seroprevalence of human immunodeficiency virus, hepatitis B and C viruses and syphilis infections among blood donors at the Muhimbili National Hospital in Dar Es Salaam, Tanzania

Number tested and percentage seropositive

 

Total sample

HIV

HBsAg

HCV

Syphilis

Age

     

16–19

109 (7.0%)

107 (2.8%)

109 (8.3%)

109(3.7%)

109(0.0%)

20–29

629 (40.3%)

611 (2.3%)

629(9.2%)

628(0.6%)

629(2.1%)

30–39

497 (31.9%)

487(4.7%)

496(9.7%)

497(2.2%)

495(5.7%)

40–49

234 (15.0%)

224(6.3%)

234(7.3%)

234(1.7%)

234(6.8%)

50–59

78(5.0%)

76(6.6%)

78(10.3%)

78(1.3%)

78(19.2%)

60–69

12(0.8%)

12(0.0%)

12(8.3%)

12(0.0%)

12(16.7%)***

Sex

     

Males

1424 (89.1%)

1422(3.8%)

1423(9.1%)

1424(1.5%)

1422(4.8%)

Females

175 (10.9%)

175(4.0%)

175(6.3%)

174(1.1%)

175(4.0%)

Donor category

     

Replacement donors

1125 (70.4%)

1116(4.5)*

1124(9.5%)

1125(1.8%)

1123(6.1%)*

Voluntary donors

474 (29.6%)

441(2.0%)

474(7.2%)

473(0.8%)

474(1.5%)

HIV serostatus

     

HIV seropositive donors

  

58(8.6%)

0(0.0%)

58(12.1%)**

HIV seronegative donors

  

1495(8.7%)

1572(1.6%)

1494(4.6%)

Total

1599 (100%)

1557(3.8%)

1598(8.8%)

1597(1.5%)

1597(4.7%)

  1. Test results are not available for all donors
  2. *Significantly higher prevalence among replacement donors (P < 0.05)
  3. **Significantly higher prevalence among HIV seropositive donors (P < 0.05)
  4. *** Significant age differences in the prevalence of syphilis (P < 0.0001)