Table 1 Comparison of blood group screening before (2018) and after (2020) the application of SSM.
Year | Number of samples screened | Number of samples submitted for confirming | Rate of samples submitted for confirming | Number of UAb-positive samples | conformity rate of samples submitted for confirming | Rate of UAb-positive samples | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2018 | 95,314 | 235 | 0.25% | 63 | 26.81% | 0.07% | ||||||
2020 | 106,814 | 850 | 0.80% | 187 | 22.00% | 0.18% | ||||||
χ2 | 284.57 | 2.4 | 48.42 | |||||||||
P | < 0.01 | 0.12 | < 0.01 | |||||||||
