Patient characteristics
| Centre 1 (n=120) | Centre 2 (n=194) | |
|---|---|---|
| Age (year) | ||
| Mean (SD) | 61 (11.9) | 59 (11.0) |
| Gender, n (%) | ||
| Male | 79 (66) | 126 (65) |
| Lens status | ||
| Phakic | 68 (57) | 124 (64) |
| Pseudophakic | 52 (43) | 68 (35) |
| Aphakic | – | 2 (1) |
| Surgical procedure, n (%)* | ||
| SB | 17 (14) | 70 (36) |
| PPV+gas | 31 (26) | 104 (54) |
| PPV+oil | – | 15 (8) |
| SB+PPV+gas | 52 (43) | – |
| SB+PPV+oil | 20 (17) | – |
| PPV+air | – | 5 (3) |
| Extent of detachment, n (%) | ||
| <1 quadrant | – | 7 (3.6) |
| 1 quadrant | 23 (19.2) | 45 (23.2) |
| 2 quadrants | 67 (55.8) | 97 (50.0) |
| 3 quadrants | 22 (18.3) | 30 (15.5) |
| 4 quadrants | 8 (6.7) | 15 (7.7) |
| Macula attached, n (%)* | ||
| Yes | 44 (36.7) | 100 (51.5) |
| Primary success rate, n (%) | 104 (87) | 164 (85) |
| Persistent detachment, n (%) | 2 (1.6) | 4 (2.1) |
| PVR development, n (%) | ||
| Yes | 9 (7.5) | 12 (6.2) |
*Significant difference between centres p<0.05, χ2.
PPV, pars plana vitrectomy; PVR, proliferative vitreoretinopathy; SB, scleral buckle.