Table 4.
Univariate analysis between baseline demographics, surgical treatments, and anatomical outcome after primary PPV and SO tamponade.
| Initial success (n = 33) | Initial failure (n = 15) | Total (n = 48) | P | |
|---|---|---|---|---|
| Age (year, mean ± SD) | 57.91 ± 11.92 | 57.93 ± 10.76 | 57.92 ± 11.39 | 0.995 |
| Sex (male/female), n (%) | 3 (9.1)/30 (90.9) | 3 (20.0)/12 (80.0) | 6 (12.5)/42 (87.5) | 0.360* |
| Axial length (mm, mean ± SD) | 31.51 ± 1.14 | 32.56 ± 1.52 | 31.84 ± 1.35 | 0.011 |
| Preoperative lens status (phakia/pseudophakia/ aphakia), n (%) | 30 (90.9)/3 (9.1)/0 (0) | 12 (80.0) /2 (13.3)/1 (6.7) | 42 (87.5)/5 (10.4)/1 (2.1) | 0.239† |
| Duration of symptom (days, mean ± SD) | 30.27 ± 24.87 | 36.87 ± 28.44 | 32.33 ± 25.92 | 0.362† |
| Extent of RD (within vascular arcade/beyond vascular arcade), n (%) | 11 (33.3)/22 (66.7) | 8 (53.3)/7 (46.7) | 19 (39.6)/29 (60.4) | 0.189 |
| Posterior staphyloma (present/absent), n (%) | 31 (93.9)/2 (6.1) | 13 (86.7)/2 (13.3) | 44 (91.7)/4 (8.3) | 0.579* |
| Myopic maculopathy grading of the eye, n (%) | ||||
| Category 1 | 3 (9.1) | 0 (0) | 3 (6.3) | 0.038† |
| Category 2 | 16 (48.5) | 4 (26.7) | 20 (20) | |
| Category 3 | 12 (36.4) | 9 (60) | 21 (43.8) | |
| Category 4 | 2 (6.1) | 2 (13.3) | 4 (8.3) | |
| Presence of attached posterior hyaloid or epiretinal membrane (present/absent), n (%) | 15 (45.5)/18 (54.5) | 6 (40.0)/9 (60.0) | 21 (43.8)/27 (56.3) | 0.724 |
| Combined ILM covering/insertion, n (%) | 16 (48.5)/17 (51.5) | 7 (46.7)/8 (53.3) | 23 (47.9)/25 (52.1) | 0.907 |
| Combined cataract surgery, non PEA/PEA + IOL/PEA only, n (%) | 10 (30.3)/12 (36.4)/11 (33.3) | 5 (33.3)/3 (20.0)/7 (46.7) | 15 (31.3)/15 (31.3)/18 (37.5) | 0.671† |
| Duration of SO before prim surg removal (months, mean ± SD) | 4.21 ± 1.56 | 5.13 ± 1.77 | 4.50 ± 1.66 | 0.075 |
RD retinal detachment, PEA phacoemulsification and aspiration, IOL intraocular lens, SO silicone oil.
*Fisher’s exact probability test.
†Mann–Whitney U test.