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Table 4 Positivity rate of transfusion – transmissible infections (TTI) by donor type and donation frequency of the donors

From: Seroprevalence of transfusion-transmissible infections among blood donors at National Blood Transfusion Service, Eritrea: a seven-year retrospective study

Variables No of Donor Positive No (%) HBsAg+ No (%) Anti-HCV+ No (%) Anti - HIV+ No (%) Anti -TP+ No (%) MI No (%)
Donor Type
 VNRBD 54,264 1808 (3.3) 1031 (1.9) 382 (0.7) 146 (0.3) 249 (0.5) 32 (0.1)
 Replacement 5972 412 (6.9) 214 (3.6) 60 (1.0) 36 (0.6) 102 (1.7) 10 (0.2)
P -value   0.000* 0.000* 0.006* 0.000* 0.000* 0.007*
Donation Frequency
 First time 19,816 2142 (10.8) 1165 (5.8) 426 (2.2) 172 (0.9) 339 (1.7) 40 (0.2)
 Second time 17,169 29 (0.16) 12 (0.06) 8 (0.05) 3 (0.05) 6 (0.03) 0 (0.0)
 Third time 8668 46 (0.53) 25 (0.29) 8 (0.09) 6 (0.07) 5 (0.06) 2 (0.02)
 Four & above 14,583 3 (0.021) 1 (0.007) 0 (0.0) 1 (0.007) 1 (0.007) 0 (0.0)
P - value   0.000 0.048 0.572 0.240 0.561 0.548
  1. P-value, Pearson Chi-square test and Fishers exact test (*) for statistical difference in the distribution within each group, MI Multiple Infections. VNRBD Voluntary non-replacement blood donors