Table 1.
Incidence of each type of iatrogenic break
| Iatrogenic break | Group 1 (n = 259) | Group 2 (n = 318) | Group 3 (n = 183) | P-value |
|---|---|---|---|---|
| During membrane dissection | No dissection | 67 (21.0) | 91 (49.7) | <0.001* |
| Peripheral | 21 (8.1) | 19 (6.0) | 17 (9.3) | 0.359† |
| Oral dialysis | 2 (0.8) | 7 (2.2) | 7 (3.8) | 0.087† |
Notes: Group 1, vitreous hemorrhage only; group 2, fibrovascular membranes requiring treatment without traction retinal detachment; group 3, fibrovascular membrane with traction retinal detachments. Eyes (%). Some eyes showed multiple types of breaks.
†
mxn χ2 test;
*
χ2 test.