Table 4a.
Clinically Relevant Leak (CRL) by technical factors
| Characteristic | N | CRL | p value | |
|---|---|---|---|---|
| n | % | |||
| Surgery type | <.0001 | |||
| Primary surgery | 4286 | 34 | 0.8 | |
| Revision surgery | 149 | 10 | 6.7 | |
| Neither primary or revision surgery | 9 | 0 | 0.0 | |
| Surgery performed | <.0001 | |||
| Laparoscopic Gastric Bypass | 3841 | 29 | 0.8 | |
| Open Gastric Bypass | 603 | 15 | 2.5 | |
| Gastrojejunostomy sealed (22 missing) | 0.36 | |||
| No | 1854 | 21 | 1.1 | |
| Yes | 2568 | 22 | 0.9 | |
| Drain placed at Gastrojejunostomy | 0.02 | |||
| No | 3711 | 31 | 0.8 | |
| Yes | 733 | 13 | 1.8 | |
| Method of Gastrojejunostomy (33 missing) | 0.02 | |||
| Predominantly linear stapled | 1594 | 9 | 0.6 | |
| Predominantly EEA | 1731 | 17 | 1.0 | |
| Predominantly hand sewn | 1086 | 18 | 1.7 | |
| Anastomosis tested (5 missing) | 0.06 | |||
| No | 636 | 2 | 0.3 | |
| Yes | 3803 | 42 | 1.1 | |