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Table 2 The yield rates of the four groups were varied in the different years

From: Characteristic of HBV nucleic acid amplification testing yields from blood donors in China

HBV NAT yields Years Total
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Types Donations Groups Number 46,853 131,594 125,656 105,668 119,301 106,505 106,494 158,791 136,568 122,925 1,160,355
Non-discriminating reactive Non-repeated positive Number 31 123 162 144 168 209 180 243 228 148 1636
NAT yields (per million) 661.64 934.69 1289.23 1362.76 1408.20 1962.35 1690.24 1530.31 1669.50 1203.99 1409.91
Non-discriminated positive Number 9 31 27 13 14 6 6 8 7 6 127
NAT yields (per million) 192.09 235.57 214.87 123.03 117.35 56.34 56.34 50.38 51.26 48.81 109.45
Total Number 40 154 189 157 182 215 186 251 235 154 1763
Proportion 51.28% 60.63% 61.76% 70.40% 66.67% 69.13% 63.48% 50.30% 50.76% 45.03% 57.96%
NAT yields (per million) 853.73 1170.27 1504.11 1485.79 1525.55 2018.68 1746.58 1580.69 1720.75 1252.80 1519.36
HBV Non-repeated HBV-DNA positive Number 13 35 42 32 23 15 15 78 73 48 374
NAT yields (per million) 277.46 265.97 334.25 302.84 192.79 140.84 140.85 491.21 534.53 390.48 322.32
Repeated HBV-DNA positive Number 25 65 75 34 68 81 92 170 155 140 905
NAT yields (per million) 533.58 493.94 596.87 321.76 569.99 760.53 863.90 1070.59 1134.97 1138.91 779.93
Total Number 38 100 117 66 91 96 107 248 228 188 1279
Proportion 48.72% 39.37% 38.24% 29.60% 33.33% 30.87% 36.52% 49.70% 49.24% 54.97% 42.04%
NAT yields (per million) 811.05 759.91 931.11 624.60 762.78 901.37 1004.75 1561.80 1669.50 1529.39 1102.25
Overall Number 78 254 306 223 273 311 293 499 463 342 3042
NAT yields (per million) 1664.78 1930.18 2435.22 2110.38 2288.33 2920.05 2751.33 3142.50 3390.25 2782.18 2621.61