Table 2.
General linear model to determine the factors associated with optic disc tilt ratio.
| Univariable Analysis | Multivariable Analysis * | |||||
|---|---|---|---|---|---|---|
| β | 95% CI | p-Value | β | 95% CI | p-Value | |
| Age, per 1 year older | −0.001 | −0.004~0.002 | 0.357 | |||
| Female sex | 0.002 | −0.073~0.076 | 0.968 | |||
| Nasal location of CRVT | 0.201 | −0.273~−0.130 | <0.001 | 0.212 | −0.287~−0.137 | <0.001 |
| Baseline IOP, per 1 mmHg higher | −0.004 | −0.012~0.005 | 0.387 | |||
| SEQ, per 1 diopter larger | −0.009 | −0.019~0.001 | 0.069 | 0.002 | −0.008~0.012 | 0.7 |
| AXL, per 1 mm longer | 0.05 | 0.021~0.079 | 0.001 | 0.044 | 0.015~0.072 | 0.003 |
| CCT, per 1 μm thicker | 0.00 | −0.001~0.001 | 0.407 | |||
| Global RNFLT, per 1 μm thicker | 0.001 | −0.002~0.005 | 0.392 | |||
| Visual field MD, per 1 dB larger | −0.025 | −0.041~−0.009 | 0.022 | −0.018 | −0.034~−0.003 | 0.021 |
| Visual field PSD, per 1 dB larger | 0.008 | −0.006~0.022 | 0.272 | |||
* Only variables with a p-value of less than 0.10 in the univariable analysis were included in the multivariable model. Statistically significant values are shown in bold. CI = confidence interval; CRVT = central retinal vessel trunk; IOP = intraocular pressure; SEQ = spherical equivalent; AXL = axial length; CCT = central corneal thickness; RNFLT = retinal nerve fiber layer thickness; MD = mean deviation; PSD = pattern standard deviation.