Table 1. Grades of surgeon performing the operation.
| Operator | 8 Extracted (%) | 8 Not extracted (%) |
|---|---|---|
| Consultant | 59 (18) | 48 (20) |
| Specialist Registrar | 237 (73) | 175 (72) |
| Staff grade | 20 (6) | 12 (5) |
| SHO | 8 (3) | 7 (3) |
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