Table 3. Factors associated with increased vertical-horizontal ALID difference.

Variable	Univariate analysis			Multivariable analysis 1*			Multivariable analysis 2*
	Beta	Standard error	P-value	Beta	Standard error	P-value	Beta	Standard error	P-value
Age, for each year older	1.166	0.344	0.001	0.878	0.361	0.016	0.614	0.369	0.10
Gender, male	–14.568	8.476	0.09	–4.917	8.568	0.57	–8.468	8.779	0.34
DM	31.535	14.76	0.035	26.210	13.781	0.06	27.733	14.358	0.06
HTN	15.640	9.314	0.11
Diagnosis			< 0.001			<0.001
HTG	7.197	10.546	0.33	11.402	14.776	0.44
NTG	47.299	9.000	< 0.001	44.265	11.338	<0.001
Healthy	Ref			Ref
Baseline IOP, per 1 mmHg increase	–1.741	0.771	0.025				–2.835	1.030	0.007
IOP at examination, per 1 mmHg increase	–2.686	1.502	0.08				1.190	1.732	0.49
AXL, per 1 mm increase	–1.843	3.378	0.56
CCT, per 1 μm increase	–0.249	0.133	0.09	–0.049	0.133	0.71	–0.025	0.139	0.86
MD of VF, per 1 dB increase	–0.858	2.066	0.41
Average RNFLT, per 1 μm increase	–0.809	0.299	0.031	–0.140	0.420	0.74	–1.260	0.345	<0.001

Statistical analysis was performed using the general linear model. Statistically significant values are shown in bold,

* Factors with P < 0.10 in the univariate analysis were included in the multivariable analysis.

DM = diabetes mellitus; HTN = hypertension; HTG = high-tension glaucoma; NTG = normal-tension glaucoma; IOP = intraocular pressure; AXL = axial length; CCT = central corneal thickness; MD = mean deviation; VF = visual field; RNFLT = retinal nerve fiber layer thickness