Table 4.
Comparison of automated cleaning performance for derivation and validation datasets
| Recognised | Unrecognised | Total | |
| Derivation | 95.8% (n=40 772) | 4.2% (n=1794) | 42 566 |
| Validation | 94.9% (n=19 138) | 5.1% (n=1027) | 20 165 |
P<0.001 using χ2.
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