Table 3. Univariate regression analysis of choroidal area with associated factors.

	Peripapillay choroidal area				Macular choroidal area
	Normal		NTG		Normal		NTG
	β	P value	β	P value	β	P value	β	P value
Age	-0.477	0.0004	-0.469	0.004	-0.278	0.046	-0.101	0.56
Axial length	-0.036	0.80	-0.1	0.95	-0.272	0.051	-3.17	0.06
CCT	0.123	0.39	0.204	0.24	0.314	0.023	0.18	0.30
IOP	0.083	0.56	-0.175	0.32	0.059	0.68	0.79	0.65
OPP	-0.018	0.90	0.046	0.79	0.057	0.69	0.014	0.94
BP
Systolic	-0.058	0.69	0.06	0.73	0.152	0.28	0.233	0.18
Diastolic	0.072	0.62	-0.051	0.77	0.013	0.93	-0.89	0.61
MD			-0.186	0.284			0.056	0.75

CCT; central corneal thickness, IOP; intraocular pressure, OPP; ocular perfusion pressure BP; blood pressure, MD; mean deviation