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The number of AAA cases overall has dropped dramatically, as well as the proportion of cases using an assistant surgeon (P < .001 for the trend).
| Year | With Assistant Surgeon | No Assistant Surgeon |
|---|---|---|
| N (%) | N (%) | |
| 2001 | 3,235 (38.3%) | 5,210 (61.7%) |
| 2002 | 2,698 (37.1%) | 4,568 (62.9%) |
| 2003 | 2,385 (35.7%) | 4,293 (64.3%) |
| 2004 | 2,072 (33.1%) | 4,194 (66.9%) |
| 2005 | 1,690 (31.7%) | 3,637 (68.3%) |
| 2006 | 1,400 (32.7%) | 2,881 (67.3%) |
| 2007 | 1,041 (30.7%) | 2,346 (69.3%) |
| 2008 | 718 (27.1%) | 1,933 (72.9%) |
