RD rates and HRs according to each variable
| Multivariate analysis | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| First eye cataract surgery, No (%) | Overall RD No of eyes (%) | Cumulative RD at 3 months, No of eyes (%) | Cumulative RD at 7 years, No of eyes (%) | Univariate analysis | All variables | Backstep analysis | ||||
| Variable | n=18.065 | n=36 | n=12 (0.067%) | n=36 (0.30%) | HR (95% CI) | p Value | HR (95% CI) | p Value | HR (95% CI) | p Value |
| Gender | ||||||||||
| Female | 10 535 (58.3%) | 15 (0.14%) | 5 (0.04%) | 15 (0.27%) | Reference | Reference | ||||
| Male | 7530 (41.7%) | 21 (0.27%) | 7 (0.09%) | 21 (0.33%) | 2.00 (1.03 to 3.88) | 0.03 | 1.31 (0.66 to 2.6) | 0.43 | ||
| Age | ||||||||||
| 60–80 years | 10 052 (55.6%) | 19 (0.19%) | 7 (0.07%) | 19 (0.34%) | Reference | Reference | Reference | |||
| <60 years | 1557 (8.6%) | 15 (0.96%) | 4 (0.26%) | 15 (1.177%) | 5.12 (2.60 to 10.07) | <0.001 | 4.25 (2.13 to 8.50) | <0.001 | 4.36 (2.18 to 8.69) | <0.001 |
| >80 years | 6456 (35.7%) | 2 (0.03%) | 1 (0.01%) | 2 (0.032%) | 0.16 (0.38 to 0.69) | 0.01 | 0.17 (0.40 to 0.74) | 0.01 | 0.17 (0.40 to 0.73) | 0.01 |
| Axial length | ||||||||||
| 23–25 mm | 9670 (53.5%) | 17 (0.17%) | 4 (0.04%) | 16 (0.24%) | Reference | Reference | ||||
| <23 mm | 6494 (35.9%) | 6 (0.09%) | 3 (0.04%) | 6 (0.10%) | 0.51 (0.20 to 1.30) | 0.16 | 0.63 (0.24 to 1.62) | 0.34 | ||
| >25 mm | 1884 (10.4%) | 13 (0.69%) | 5 (0.26%) | 13 (0.78%) | 3.98 (1.93 to 8.20) | <0.001 | 2.70 (1.30 to 5.64) | <0.001 | 2.74 (1.31 to 5.71) | <0.001 |
| PCR status | ||||||||||
| No PCR | 17 665 (97.8%) | 29 (0.16%) | 8 (0.04%) | 29 (0.26%) | Reference | Reference | Reference | |||
| PCR with vitreous loss | 328 (1.8%) | 7 (2.13%) | 4 (1.22%) | 7 (2.44%) | 12.83 (5.62 to 29.30) | <0.001 | 15.36 (6.7 to 35.2) | <0.001 | 15.94 (6.96 to 36.45) | <0.001 |
| PCR without vitreous loss | 72 (0.4%) | 0 (0%) | 0 (0%) | 0 (0%) | Not applicable | Not applicable | Not applicable | |||
PCR, posterior capsular rupture; RD, retinal detachment.