Table 4. Multivariable regression models evaluating the relationship between minimum rim width (MRW) and peripapillary retinal nerve fiber layer thickness (RNFLT) and covariates by racial group.
| ß (95% CI) | P value | |||||
|---|---|---|---|---|---|---|
| AD | ED | MD | AD vs ED | AD vs MD | ED vs MD | |
| MRW | ||||||
| Age* (μm/y) | -1.45 (-2.12, 0.79) | -1.28 (-1.87, -0.70) | -1.34 (-2.12, -0.56) | 0.71 | 0.83 | 0.91 |
| BMO area** (μm/mm2) | -38.51 (-59.28, -17.74) | -60.56 (-82.24, -38.88) | -57.04 (-82.00, -32.08) | 0.15 | 0.26 | 0.83 |
| RNFLT***(μm/μm) | 2.05 (1.20, 2.90) | 1.60 (0.67, 2.54) | 1.72 (0.71, 2.74) | 0.45 | 0.61 | 0.85 |
| RNFLT | ||||||
| Age* (μm/y) | -0.32 (-0.45, -0.19) | -0.10 (-0.21, 0.02) | -0.08 (-0.23, 0.07) | 0.01 | 0.02 | 0.86 |
| BMO area** (μm/mm2) | 8.57 (4.48, 12.67) | 11.33 (7.05, 15.60) | 11.81 (6.88, 16.73) | 0.15 | 0.26 | 0.83 |
AD: African descent; ED: European descent; MD: Mixed descent; BMO: Bruch’s membrane opening
*Adjusted for BMO area
**Adjusted for age
*** Adjusted for age and BMO area
P values < 0.05 are shown in bold.