Table 1.
Patients’ demographics and preoperative ocular status
| 20-gauge | 25-gauge | P value | |
|---|---|---|---|
| Eyes/patients (n) | 72/53 | 87/55 | |
| male:female | 34:19 | 36:19 | 0.952* |
| Age (yrs) | |||
| Mean ± SDs | 57.6 ± 11.8 | 58.7 ± 11.0 | 0.432** |
| Range | 26–82 | 33–78 | |
| Preoperative BCVA | |||
| LogMAR ± SDs | 0.99 ± 0.70 | 0.99 ± 0.66 | 0.781** |
| Range | LP-0.9 | LP-1.2 | |
| Preoperative intraocular pressure (mmHg) | |||
| Mean ± SDs | 15.4 ± 3.4 | 14.3 ± 3.4 | 0.076** |
| Range | 8–25 | 8–28 | |
| Phakic:pseudophakic eyes | 59:13 | 69:18 | 0.829* |
| Preoperative photocoagulation (n [%]) | 61 [84.7] | 77 [88.5] | 0.641* |
| Preoperative neovascular glaucoma (n [%]) | 6 [8.3] | 2 [2.3] | 0.171* |
| Indications for vitrectomy | 0.108* | ||
| Non-clearing vitreous hemorrhage (n [%]) | 37 [51.4] | 59 [67.8] | |
| Active fibrovascular proliferation (n [%]) | 20 [27.8] | 16 [18.4] | |
| Tractional retinal detachment involving or threatening the macula (n [%]) | 15 [20.8] | 12 [13.8] | |
| Systemic data | |||
| Mean hemoglobin A1c (%) ± SDs | 7.4 ± 1.4 | 7.3 ± 1.6 | 0.269** |
| Mean blood urea nitrogen (mg/dL) ± SDs | 21.8 ± 13.6 | 17.5 ± 7.4 | 0.131** |
| Mean creatine (mg/dL) ± SDs | 1.6 ± 2.5 | 1.1 ± 0.9 | 0.342** |
Notes:*Chi-square or **Mann–Whitney rank sum test was performed to compare between the groups.
Abbreviations: BCVA best-corrected visual acuity; logMAR, logarithm of minimal angle of resolution; SD, standard deviation; LP, light perception.