Skip to main content
. Author manuscript; available in PMC: 2009 Oct 3.
Published in final edited form as: Ophthalmology. 2005 Jan;112(1):10–19. doi: 10.1016/j.ophtha.2004.07.018

Table 4.

Summary of Multiple Regression Model Results

Variable Coefficient ± Standard Error of the Mean P Value Interpretation
Decade of age − 0.086 ± 0.012 <0.001 Amplitude decreases by approximately 0.1 μV per decade of age
Family history − 0.024 ± 0.033 0.46 Not significant after adjusting for the other variables
Black race − 0.111 ± 0.037 0.003 Glaucomatous blacks have amplitudes reduced by approximately 0.1 μV compared with nonblacks
EMG vs. GS − 0.058 ± 0.037 0.11 Not significant after adjusting for the other variables
Left eye vs. right eye − 0.011 ± 0.013 0.43 Not significant
C/D − 0.158 ± 0.079 0.032 PERG amplitude is reduced by approximately 0.15 μV for each 0.1 increase in C/D
MD 0.022 ± 0.006 <0.001 PERG amplitude decreases by approximately 0.2 μV with each decibel of mean deviation
IOP 0.002 ± 0.004 0.71 Not significant after adjusting for the other variables

C/D = vertical cup-to-disc ratio; EMG = early manifest glaucoma; GS = glaucoma suspects; IOP = intraocular pressure; MD = mean deviation index of standard automated perimetry; PERG = pattern electroretinogram.