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Table 1 Age and Gender demographics of voluntary and replacement blood donors

From: Prevalence of hepatitis B virus infection among blood donors at the Tamale Teaching Hospital, Ghana (2009)

Age* (years) Female (%) Male (%) Total (%)
  VBD RBD VBD RBD VBD RBD
11-19 10(83.33) 1(16.67) 125(22.16) 269(4.61) 135(23.44) 270(4.62)
20-29 1(8.33) 4(66.67) 307(54.43) 2,873(49.2) 308(53.47) 2,877(49.22)
30-39 1(8.33) 0(0) 106(18.79) 2,081(35.64) 107(18.58) 2,081(35.6)
40-49 0(0) 1(16.67) 26(4.61) 539(9.23) 26(4.51) 540(9.24)
50-69 - 0(0) - 77(1.32) - 77(1.32)
Total 12(100) 6(100) 564(100) 5,839(100) 576(100) 5,845(100)
  1. VBD Voluntary blood donors; RBD Replacement blood donors; Pearson chi2 for VBD (3) = 24.6740; P-value <0.001; Pearson chi2 for RBD (4) = 4.8347 P-value = 0.305