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 | ||