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Trends in tonsillectomy techniques utilised by specialist registrars in Wales between 2003 and 2012.
| Tonsillectomy technique | % change | Pearson's correlation (r) | p value |
|---|---|---|---|
| Coblation | +2621 | 0.846 | 0.002 |
| Cold steel + ties | −52 | −0.817 | 0.004 |
| Cold steel + both (diathermy haemostasis + ties) | +12 | 0.414 | 0.234 |
| Bipolar diathermy | +252 | 0.665 | 0.036 |
