Comparison of average complication rate of high volume surgeons (>400 cases per year) with low volume (<400) throughout the study period
| % complication rates | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 |
|---|---|---|---|---|---|---|
| High vol surgeon (>400 cases per year) | 1.9 | 1.5 | 1.7 | 0.7 | 0.8 | 0.9 |
| Low volume surgeon (<400 cases per year) | 4.1 | 2.5 | 1.9 | 2.5 | 3.1 | 1.9 |