Numbers of errors recorded according to types of error involved for each category of product
| Product type | Error type | ||||||||||
| Transcription | Calculation | Drug | Dose/strength | Diluent | Final vol. | Label | Expiry | Container | Other | Total | |
| Cytotoxic adult | 211 (10.3%) | 70 (3.4%) | 49 (2.4%) | 94 (4.6%) | 126 (6.2%) | 110 (5.4%) | 826 (40.4%) | 188 (9.2%) | 50 (2.4%) | 323 (15.8%) | 2047 |
| Cytotoxic paediatric | 11 (8.5%) | 4 (3.1%) | 1 (0.8%) | 10 (7.8%) | 4 (3.1%) | 3 (2.3%) | 57 (44.2%) | 13 (10.1%) | 1 (0.8%) | 25 (19.4%) | 129 |
| Parenteral nutrition—adult | 93 (13.1%) | 63 (8.9%) | 86 (12.1%) | 59 (8.3%) | 8 (1.1%) | 23 (3.2%) | 220 (30.9%) | 11 (1.5%) | 7 (1%) | 141 (19.8%) | 711 |
| Parenteral nutrition—paediatric | 35 (19%) | 18 (9.8%) | 23 (12.5%) | 12 (6.5%) | 4 (2.2%) | 17 (9.2%) | 21 (11.4%) | 7 (3.8%) | 6 (3.3%) | 41 (22.3%) | 184 |
| Other intravenous additive | 140 (10.8%) | 90 (6.9%) | 29 (2.2%) | 57 (4.4%) | 54 (4.2%) | 141 (10.9%) | 417 (32.1%) | 102 (7.9%) | 39 (3%) | 229 (17.6%) | 1298 |
| Other prefilled syringes | 35 (11.1%) | 10 (3.2%) | 15 (4.8%) | 12 (3.8%) | 8 (2.5%) | 15 (4.8%) | 83 (26.4%) | 25 (8%) | 3 (1%) | 108 (34.4%) | 314 |
| Other | 20 (9.1%) | 11 (5%) | 7 (3.2%) | 11 (5%) | 10 (4.5%) | 10 (4.5%) | 46 (20.9%) | 17 (7.7%) | 8 (3.6%) | 80 (36.4%) | 220 |
| Data missing | 2 (4.4%) | 4.0 (8.9%) | 0 | 1 (2.2%) | 1 (2.2%) | 3 (6.7%) | 20 (44.4%) | 8 (17.8%) | 0 | 6 (13.3%) | 45 |
| Total | 547 (11.1%) | 270 (5.5%) | 210 (4.2%) | 256 (5.2%) | 215 (4.3%) | 322 (6.5%) | 1690 (34.2%) | 371 (7.5%) | 114 (2.3%) | 953 (19.3%) | 4948 |