Table 3 Linear regression of trabecular meshwork length and patient demographics.

	Univariable		Multivariable 1		Multivariable 2		Multivariable 3
	B(SE)	p-value	B(SE)	p-value	B(SE)	p-value	B(SE)	p-value
group
Closed angle eyes	Ref(0)		Ref(0)		Ref(0)		Ref(0)
Open angle eyes	0.236(0.017)	<0.0001	0.236(0.017)	<0.0001	0.136(0.037)	0.0004	0.136(0.036)	0.0003
Variable
age	−0.004(0.001)	<0.0001	−0.004(0.001)	<0.0001	−0.001(0.001)	0.4635
sex
Male	Ref(0)		Ref(0)		Ref(0)
Female	−0.063(0.028)	0.0264	−0.063(0.028)	0.0264	0.001(0.020)	0.9558
IOP	−0.004(0.003)	0.1325	−0.004(0.003)	0.1325
Spherical equivalent	−0.019(0.003)	<0.0001	−0.019(0.003)	<0.0001	−0.008(0.003)	0.0058	−0.008(0.003)	0.0033
Anterior chamber depth	0.168(0.015)	<0.0001	0.168(0.015)	<0.0001	0.058(0.027)	0.0373	0.064(0.025)	0.0129
CCT	−0.001(0.001)	0.013	−0.001(0.000)	0.013	−0.001(0.001)	0.6263

Univariable and multivariable linear regression was performed.
Multivariable 1 is the result of adjusting all variables (Univariable result, p < 0.05 + clinically important variable).
Multivariable 2 was corrected by subtracting the IOP that did not affect the TM length (Univariable result, p < 0.05).
Multivariable 3 was corrected by variables that affected TM height, and a stepwise method was used to select only the variables that were significant.
IOP: Intraocular pressure; CCT: Central corneal thickness; SE: standard error.

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