The outcome of logistic analysis of SO-tamponaded eyes with or without epiretinal membrane
| Category | Univariate analysis | Multi-factor analysis | ||
| OR (95% CI) | P value | OR (95% CI) | P value | |
| Gender | 1.143 (1.021 to 1.855) | 0.045 | 1.117 (0.761 to 1.640) | 0.573 |
| Age | 0.951 (0.878 to 1.166) | 0.936 | 1.034 (0.870 to 1.228) | 1.034 |
| SOTT | 1.503 (1.331 to 1.656) | <0.001 | 1.523 (1.261 to 1.840) | <0.001 |
| Preoperative VH | 2.744 (2.036 to 3.563) | <0.001 | 1.083 (0.577 to 2.035) | 0.803 |
| Postoperative VH | 0.536 (0.183 to 2.336) | 0.604 | 0.854 (0.130 to 5.613) | 0.869 |
| Cryotherapy | 0.685 (0.583 to 0.938) | 0.009 | 1.354 (0.830 to 2.209) | 0.224 |
| Electric coagulation | 1.514 (1.036 to 1.882) | 0.007 | 0.838 (0.552 to 1.272) | 0.406 |
| Photocoagulation energy | 2.154 (1.682 to 2.783) | <0.001 | 1.785 (1.306 to 2.439) | <0.001 |
| Photocoagulation points | 1.383 (1.131 to 1.413) | <0.001 | 1.033 (0.890 to 1.200) | 0.668 |
| Retinal aperture size | 0.934 (0.783 to 1.138) | 0.525 | 0.959 (0.718 to 1.281) | 0.776 |
| Type 2 diabetes | 4.125 (3.144 to 5.458) | <0.001 | 3.996 (2.013 to 7.932) | <0.001 |
| Hypertension | 1.525 (1.124 to 2.086) | 0.003 | 1.208 (0.783 to 1.854) | 0.396 |
| Preoperative PVR | 12.74 (9.342 to 17.53) | <0.001 | 4.336 (2.533 to 7.424) | <0.001 |
| Preoperative CD | 1.142 (0.786 to 1.613) | 0.555 | 1.579 (0.946 to 2.635) | 0.080 |
CD, choroidal detachment; PVR, proliferative vitreoretinopathy; SOTT, silicone oil tamponade time; VH, vitreous haemorrhage.