Table 1 The data of HTLV-1/2 screening using CLIA and ELISA among blood donors in the three blood screening laboratories
S/CO of CLIA | Hebei blood center | Changsha blood center | Shenzhen blood center | Sum | ||||
|---|---|---|---|---|---|---|---|---|
Initial test | Retest | Initial test | Retest | Initial test | Retest | Initial test | Retest | |
0.1 | 2529 | / | 2675 | / | 2930 | / | 8134 | / |
0.2 | 6996 | / | 6433 | / | 12,707 | / | 26,136 | / |
0.3 | 4341 | / | 4335 | / | 8712 | / | 17,388 | / |
0.4 | 1582 | / | 1276 | / | 2997 | / | 5855 | / |
0.5 | 490 | / | 318 | / | 861 | / | 1669 | / |
0.6 | 142 | / | 88 | / | 214 | / | 444 | / |
0.7 | 46 | / | 27 | / | 65 | / | 138 | / |
0.8 | 10 | / | 5 | / | 22 | / | 37 | / |
0.9 | 3 | / | 3 | / | 8 | / | 14 | / |
≥1.0 | 5 | 4 | 4 | 2 | 105 | 26 | 114 | 32 |
Number of donations | 16,144 | 15,164 | 28,621 | 59,929 | ||||
L2400 non-reactive | 16,140 (99.9752%) | 15,162 (99.9868%) | 28,595 (99.9092%) | 59,897 (99.9466%) | ||||
L2400 reactive | 4 (0.0248%) | 2 (0.0132%) | 26 (0.0908%) | 32 (0.0534%) | ||||
ELISA non-reactive | 16,144 (100.0000%) | 15,162 (99.9868%) | 28,617 (99.9860%) | 59,923 (99.9900%) | ||||
ELISA reactive | 0 (0.0000%) | 2 (0.0132%) | 4 (0.0140%) | 6 (0.0100%) | ||||
INNO-LIA negative | 2 | 3 | 24 | 28 | ||||
INNO-LIA positive | 0 | 0 | 1 | 1 | ||||
INNO-LIA indeterminate | 2 | 0 | 1 | 3 | ||||
Indeterminate rate | 0.0124% | 0.0000% | 0.0035% | 0.0050% | ||||
Negative rate | 99.9876% | 100.0000% | 99.9930% | 99.9933% | ||||
Positive rate | 0.0000% | 0.0000% | 0.0035% | 0.0017% | ||||