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Table 3 Correlation between mean pupil size and each factor

From: Analysis of various factors affecting pupil size in patients with glaucoma

  Number y = a x + ba p-valueb Betac
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
  1. BCVA best corrected visual acuity, CCT central corneal thickness, WTW white-to-white, RNFL retinal nerve fiber layer
  2. a y = independent factor, x = mean pupil size
  3. bsimple linear regression test
  4. cstandardized coefficient beta by simple linear regression test