| WI n = 35 | EP n = 75 | P-value |
---|---|---|---|
Highest grade of complication n (%) | |||
 I | 27 (77.1) | 51 (66.0) | 0.325 |
 II | 4 (11.4) | 21 (28.0) | 0.053 |
 IIIa | 0 | 0 |  |
 IIIb | 2 (5.7) | 2 (2.7) | 0.426 |
 IVa | 0 | 0 |  |
 IVb | 2 (5.7) | 1 (1.3) | 0.189 |
 V | 0 | 0 |  |
Readmission within 2 weeks n (%) | 1 (2.9) | 6 (8.0) | 0.303 |