Analysis of various factors affecting pupil size in patients with glaucoma

BMC Ophthalmology

Table 3 Correlation between mean pupil size and each factor

	Number	y = a x + b^a	p-value^b	Beta^c
Age (year)	825	y = −0.010 x + 5.962	<0.001	−0.147
IOP (mmHg)	825	y = −0.011 x + 5.668	0.326	−0.034
Log MAR BCVA	825	y = −0.615 x + 5.550	0.02	−0.081
Spherical Equivalent	825	y = 0.039 x + 5.584	0.007	0.094
Axial length (mm)	240	y = 0.073 x + 3.753	0.157	0.092
CCT (um)	495	y = −0.003 x + 7.079	0.02	−0.104
WTW (mm)	112	y = −0.016 x + 6.080	0.872	−0.015
A kappa	112	y = 0.097 x + 5.483	0.129	0.144
RNFL thickness (um)	825	y = 0.005 x + 5.076	0.042	0.071

BCVA best corrected visual acuity, CCT central corneal thickness, WTW white-to-white, RNFL retinal nerve fiber layer
^a y = independent factor, x = mean pupil size
^bsimple linear regression test
^cstandardized coefficient beta by simple linear regression test

ISSN: 1471-2415