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Number of years of experience of the surgeon and incidence of complications
| Experience (years) | 2011 | Experience (years) | 2001 | ||
|---|---|---|---|---|---|
| Incidence of complication | Incidence of complication | ||||
| All surgery | Instrumentation surgery | All surgery (%) | Instrumentation surgery (%) | ||
| < 5 | 10.3 % (26/251) | 15.0 % (6/40) | 1–6 | 7.9 | 12.3 |
| 5–9 | 8.7 % (239/2,754) | 12.5 % (104/831) | 7–9 | 8.0 | 12.3 |
| 10–19 | 11.8 % (1,561/13,212) | 17.0 % (682/4,005) | 10–14 | 9.1 | 13.2 |
| > 20 | 9.5 % (1,440/15,140) | 14.9 % (688/4,606) | >15 | 8.3 | 11.0 |
