Table 2.
Bruch’s membrane opening-minimum rim width and retinal nerve fiber layer of the included subjects.
| Characteristics | Values | p value | |
|---|---|---|---|
| GS (n = 229) | Early NTG (n = 168) | ||
| BMO-MRW | |||
| BMO-fovea angle° | − 5.43 ± 3.19 | − 5.70 ± 3.19 | .097 |
| BMO area (mm2) | 2.45 ± 0.53 | 2.30 ± 0.55 | .020 |
| BMO-MRW G (um) | 263.30 ± 41.57 | 206.77 ± 43.96 | < .001 |
| BMO-MRW T | 192.97 ± 41.16 | 159.54 ± 38.02 | < .001 |
| BMO-MRW TS | 267.89 ± 43.06 | 206.40 ± 60.51 | < .001 |
| BMO-MRW TI | 295.75 ± 53.04 | 196.31 ± 65.92 | < .001 |
| BMO-MRW N | 275.96 ± 55.72 | 228.40 ± 58.06 | < .001 |
| BMO-MRW NS | 291.02 ± 57.55 | 234.69 ± 62.61 | < .001 |
| BMO-MRW NI | 321.98 ± 54.94 | 236.53 ± 63.80 | < .001 |
| RNFL thickness | |||
| RFNL G (µm) | 102.10 ± 10.05 | 82.71 ± 13.14 | < .001 |
| RFNL T | 78.63 ± 12.24 | 66.51 ± 13.17 | < .001 |
| RFNL TS | 142.62 ± 21.31 | 112.09 ± 29.72 | < .001 |
| RFNL TI | 156.01 ± 19.66 | 101.73 ± 35.21 | < .001 |
| RFNL N | 77.58 ± 15.63 | 68.21 ± 14.57 | < .001 |
| RFNL NS | 114.78 ± 25.65 | 100.83 ± 27.29 | < .001 |
| RFNL NI | 113.61 ± 23.78 | 91.91 ± 20.14 | < .001 |
| RFNL classification (WNL/BL/ONL) | |||
| RFNL G (µm) | WNL (94.3%), BL (4.4%), ONL (1.3%) | WNL (38.7%), BL (20.2%), ONL (41.4%) | < .001 |
| RFNL T | WNL (97.8%), BL (1.7%), ONL (0.4%) | WNL (85.1%), BL (7.1%), ONL (7.7%) | .049 |
| RFNL TS | WNL (95.6%), BL (2.6%), ONL (1.7%) | WNL (63.7%), BL (15.5%), ONL (20.8%) | < .001 |
| RFNL TI | WNL (93.4%), BL (5.7%), ONL (0.9%) | WNL (33.9%), BL (7.7%), ONL (58.3%) | < .001 |
| RFNL N | WNL (86.9%), BL (8.7%), ONL (4.4%) | WNL (70.8%), BL (15.5%), ONL (13.7%) | < .001 |
| RFNL NS | WNL (94.3%), BL (3.5%), ONL (2.2%) | WNL (76.2%), BL (15.5%), ONL (8.3%) | < .001 |
| RFNL NI | WNL (90.0%), BL (8.3%), ONL (1.7%) | WNL (77.4%), BL (15.5%), ONL (7.1%) | .002 |
BMO-MRW, Bruch’s membrane opening-minimum rim width. RNFL, retinal nerve fiber layer: G, global. T, temporal. TS, superotemporal. NS, superonasal. N, nasal. NI, inferonasal. TI, inferotemporal. Statistical analysis between GS and early NTG for BMO-MRW and RNFL thickness was done by Wilcoxon signed-rank test, Bold font indicates significant p values (p < 0.05); RNFL classification: WNL, within normal limits. BL, borderline. ONL, outside normal limits. Statistical analysis between GS and early NTG was done by Mann–Whitney U Test for RNFL classification. Bold font indicates significant p values (p < 0.05).