Multivariable Cox proportional hazards model of recurrence*
| Variable included | N Patients | % patients with recurrence | Adjusted HR (95% CI) | Adjusted p value |
|---|---|---|---|---|
| Lesion histology | ||||
| SSA/P | 190 | 6.8 | 1 | 0.097 |
| Adenoma | 1018 | 18.4 | 1.7 (0.9 to 3.0) | |
| Size group (mm) | ||||
| ≤25 | 385 | 6.5 | 1 | |
| 26–35 | 332 | 14.8 | 1.7 (1.1 to 2.9) | 0.031 |
| >35 | 488 | 25.8 | 2.5 (1.6 to 4.0) | <0.001 |
| Paris 0-Is component | ||||
| No | 663 | 10.1 | 1 | |
| Yes | 545 | 24.4 | 2.1 (1.6 to 2.9) | <0.001 |
| Incomplete resection | ||||
| No | 1012 | 14.2 | 1 | |
| Yes | 195 | 28.2 | 1.7 (1.2 to 2.3) | 0.001 |
| Piecemeal resection | ||||
| No (En bloc) | 191 | 3.7 | 1 | |
| Yes | 1011 | 18.8 | 3.4 (1.5 to 7.6) | 0.002 |
| Intraprocedural bleeding | ||||
| No | 1042 | 14.9 | 1 | |
| Yes | 166 | 27.1 | 1.5 (1.1 to 2.2) | 0.013 |
| Age group (years) | ||||
| <70 | 660 | 14.5 | 1 | |
| ≥70 | 544 | 19.1 | 1.4 (1.1 to 1.8) | 0.022 |
*Other variables included initially were submucosal fibrosis and non-lifting sign.
SSA/P, sessile serrated adenoma/polyp.