Table 1.
Clinical and Demographic Characteristics of Dataset 1
| Training Set (n = 483) |
Test Set (n = 56) |
|||
|---|---|---|---|---|
| PR Failure |
PR Success |
PR Failure |
PR Success |
|
| n = 153 (31.7%) | n = 330 (68.3%) | n = 30 (53.6%) | n = 26 (46.4%) | |
| Mean age (SD) | 62.4 (12.1) | 64.0 (10.4) | 62.4 (10.3) | 60.5 (8.3) |
| Sex | ||||
| Female | 48 (31.4%) | 121 (36.7%) | 17 (56.7%) | 13 (50.0%) |
| Male | 104 (68.0%) | 209 (63.3%) | 13 (43.4%) | 13 (50.0%) |
| Missing | 1 (0.6%) | 0 (0%) | 0 (0%) | 0 (0%) |
| Procedure experience | ||||
| < 16 cases | 133 (86.9%) | 231 (70.00%) | 26 (86.7%) | 10 (38.5%) |
| > 16 cases | 4 (2.6%) | 25 (7.6%) | 4 (13.3%) | 16 (61.5%) |
| Missing | 16 (10.5%) | 74 (22.4%) | 0 (0%) | 0 (0%) |
| Lens status | ||||
| Aphakic | 1 (0.6%) | 0 (0.00%) | 7 (23.3%) | 3 (11.5%) |
| Phakic | 102 (66.7%) | 244 (73.9%) | 13 (43.3%) | 7 (26.9%) |
| Pseudophakic | 50 (32.7%) | 86 (26.1%) | 10 (33.3%) | 16 (61.5%) |
| Macula status | ||||
| Detached | 76 (49.7%) | 112 (33.9%) | 20 (66.7%) | 5 (15.4%) |
| Attached | 76 (49.7%) | 218 (66.1%) | 10 (33.3%) | 22 (84.6%) |
| Missing | 1 (0.6%) | 0 (0%) | 0 (0%) | 0 (0%) |
| Size of RRD | ||||
| < 4 clock hours | 64 (41.8%) | 194 (58.8%) | 9 (30.0%) | 23 (88.5%) |
| > 4 clock hours | 87 (56.9%) | 130 (39.4%) | 21 (70.0%) | 3 (11.5%) |
| Missing | 2 (1.3%) | 6 (1.8%) | 0 (0%) | 0 (0%) |
| Number of retinal breaks (SD) | 1.34 (0.74) | 1.35 (0.95) | 1.4 (0.6) | 1.1 (0.4) |
| Inferior break | ||||
| Absent | 142 (92.8%) | 313 (94.9%) | 25 (83.3%) | 25 (96.1%) |
| Present | 2 (1.3%) | 3 (0.9%) | 5 (16.7%) | 1 (3.9%) |
| Missing | 9 (5.9%) | 14 (4.2%) | 0 (0%) | 0 (0%) |
| Vitreous hemorrhage | ||||
| Absent | 134 (87.6%) | 293 (88.8%) | 18 (60.0%) | 26 (100%) |
| Present | 19 (12.4%) | 37 (11.2%) | 12 (40.0%) | 0 (0) |
| Lattice degeneration | ||||
| Absent | 117 (76.5%) | 273 (82.7%) | 21 (70.0%) | 22 (84.6%) |
| Present | 34 (22.2%) | 57 (17.3%) | 9 (30.0%) | 4 (15.8%) |
| Missing | 2 (1.3%) | 0 (0.00%) | 0 (0%) | 0 (0%) |
PR = pneumatic retinopexy; RRD = rhegmatogenous retinal detachment; SD = standard deviation.
Comprised of 483 patients (training set), captured from Emami-Naeini et al database8 and the test set (n = 56) comprised of patient records captured from the UC Davis electronic medical records that underwent pneumatic retinopexy (PR) by procedure outcome at 3-month follow-up.