Table 3. Linear regression analyses of ocular and systemic factors associated with sub-foveal choroidal thickness.

	Univariate			Multivariate*
	Unstandardized β	Standardized β	P-value	Unstandardized β	Standardized β	P-value
Ocular factors
Axial length, mm	−15.348	−0.155	0.005	−10.508	−0.105	0.002
IOP, mmHg	3.160	0.092	0.087	3.619	0.105	0.002
OPP, mm Hg	−0.354	-0.031	0.572	–	–	–
LA, mm2	523.214	0.814	<0.001	459.729	0.714	<0.001
SA, mm2	1132.841	0.787	<0.001	68.271	0.047	0.669
Systemic factors
Age, yrs	−3.986	−0.360	<0.001	−0.856	−0.077	0.041
Gender, female	−22.274	−0.114	0.034	−13.171	−0.068	0.068
Body mass index, kg/m2	−1.173	−0.062	0.252	–	–	–
Systolic blood pressure, mmHg	−0.499	−0106	0.050	−0.328	−0.071	0.043
Diastolic blood pressure mmHg	0.749	0.084	0.122	–	–	–
Serum glucose, mmol/L	0.102	0.004	0.949	−	−	−
HbA1c, %	5.913	0.077	0.157	−	−	−
Total cholesterol, mmol/L	8.092	0.106	0.052	−0.525	−0.007	0.836
Triglycerides, mmol/L	3.456	0.049	0.366	–	–	–
Blood creatinine, mmol/L	-0.050	-0.017	0.754	–	–	–
Current smoking, (yes vs no)	28.392	0.116	0.031	−11.737	−0.049	0.187
Alcohol consumption, (yes vs no)	−19.833	0.024	0.651	–	–	–

^*Adjusted for variables with a p-value < 0.10 in the univariate analysis. β, regression coefficient.