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Table 6 HBV Prevalence for Blood Donors Above and Below 35 Years Old

From: The current incidence, prevalence, and residual risk of hepatitis B viral infections among voluntary blood donors in China

Blood Center Donations Below 35 Over 35 P-value Total Prevalence
Donations Number of HBsAg confirmed positive Prevalence Donations Number of HBsAg Confirmed Positive Prevalence
Hefei 97,668 69,540 38 0.06% 28,128 87 0.31% <0.001 0.13%
Dalian 77,395 54,018 16 0.03% 23,377 44 0.19% <0.001 0.08%
Changzhi 32,817 12,671 11 0.09% 20,146 41 0.20% 0.01 0.17%
Kaifeng 59,938 27,428 12 0.04% 32,510 28 0.09% 0.045 0.07%
Mianyang 45,494 19,463 21 0.11% 26,031 68 0.26% <0.001 0.20%
Fujian 83,554 50,383 55 0.11% 33,171 157 0.47% <0.001 0.25%
Total 396,866 233,503 153 0.07% 163,363 625 0.38% <0.001 0.20%