Number (%) of errors by each survey item
| Type of errors | ABO cell (N=37,656) | ABO serum (N=37,656) | ABO result (N=37,656) | RhD grade (N=18,575) | RhD results (N=18,575) | XM–CAT (N=4,547) | XM–tube 37℃ LISS (N=195) | XM–tube 37℃ Alb (N=13,222) | XM–tube LISS (N=227) | XM–tube saline (N=14,148) | XM–tube AHG (N=12,969) | XM result (N=16,385) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Incorrect interpretation of hemagglutination grade | 405 (1.1) | 1,503 (4.0) | 32 (0.1) | 498 (2.7) | 9 (0.0) | 18 (0.4) | 3 (1.5) | 354 (2.7) | 5 (2.2) | 229 (1.6) | 806 (6.2) | 297 (1.8) |
| Errors in result entry | 25 (0.1) | 105 (0.3) | 10 (0.0) | 6 (0.0) | 9 (0.0) | 0 | 0 | 5 (0.0) | 0 | 4 (0.0) | 1 (0.0) | 17 (0.1) |
| Limitations of test methods | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 146 (0.9) |
| Specimen change | 4 (0.0) | 4 (0.0) | 2 (0.0) | 2 (0.0) | 2 (0.0) | 6 (0.1) | 1 (0.0) | 9 (0.1) | 1 (0.4) | 6 (0.0) | 49 (0.4) | 71 (0.4) |
| Others | 5 (0.0) | 6 (0.0) | 3 (0.0) | 0 | 0 | 0 | 0 | 3 (0.0) | 0 | 4 (0.0) | 2 (0.0) | 14 (0.1) |
Abbreviations: XM, cross-matching; CAT, column agglutination technology; LISS, low-ionic strength saline; Alb, albumin; AHG, indirect anti-human globulin test.