Components Functional Success  
  Odd Ratio (95% CI) p value
20G vs 23G vitrectomy 0.336 (0.082-1.38) 0.131
Preoperative bevacizumab 0.914 (0.337-2.48) 0.859
Preoperative laser 2.67 (0.879-8.12) 0.083
Intraoperative membrane blue 1.323 (0.292-5.988) 0.716
Combined PPV/phacomulsificationvs PPV alone Intraoperative triamcinolone 0.93 (0.37-2.33) 0.371 (0.141-0.975) 0.88 0.044
Intraoperative silicone oil 0.788 (0.028-0.224) <0.001
Intraoperative triamcinolone* 0.361 (0.137-0.948) 0.039
Intraoperative silicone oil* 0.079 (0.028-0.224) <0.001
*Multivariate analyses adjusted for age, gender, preoperative best-corrected visual acuity and the parameters in the table, with level of significance at p<0.05.
Table 4: The preoperative and intraoperative surgical factors related to overall functional success at postoperative month 12.