Table 3.

Correlation coefficients and multivariate regression analysis between IOP and other variables

Variables	Correlation coefficients				Multivariate regression analysis
	OHT		POAG		OHT		POAG
	Pearson correlation	P value	Pearson correlation	P value	β	P value	β	P value
Age (years)	−0.16	0.045*	−0.23	<0.001*	−0.033	0.063	−0.066	<0.001*
Central cornea thickness (μm)	0.20	0.012*	0.16	<0.001*	0.019	0.022*	0.019	0.002*
Spherical equivalent (dioptres)	−0.013	0.873	−0.012	0.003*	0.049	0.501	0.047	0.472
Gender, female/male†‡	—	0.052	—	<0.001*	−0.707	0.137	−1.449	0.001*

*P<0.05 level.

†Student’s t-test was used to compare the IOP of different gender.

‡Coding for dummy variables: male=0, female=1.

IOP, intraocular pressure; OHT, ocular hypertension; POAG, primary open-angle glaucoma.