Table II.

Slopes of linear regressions fitting PERG amplitude/phase and SAP-MD/PSD measurements performed during the observation period in 59 untreated glaucoma suspects.

Regression Slopes Subjects, N=59	Mean Slope	SD	p-value (difference of mean slope from zero	+95% CI Mean Slope	−95% CI Mean Slope	Mean # observations per regression	SD
OD-PERG Amplitude (% difference from normal/yr)	−3.067	5.855	<0.001	−1.499	−4.635	9.5	2.6
OD PERG Phase (ms delay/year)	−0.296	0.593	<0.001	−0.137	−0.455	9.5	2.6
OD SAP-MD (dB/year)	0.038	0.274	.298	0.112	−0.035	8.8	2.4
OD SAP-PSD (dB/year)	−0.028	0.134	.125	0.008	−0.064	8.8	2.3
OS-PERG Amplitude (% difference from normal/yr)	−1.903	4.961	.008	−0.522	−3.284	9.6	2.5
OS PERG Phase (ms delay/year)	−0.409	0.548	<0.001	−0.257	−0.562	9.6	2.5
OS SAP-MD (dB/year)	0.064	0.257	.077	0.136	−0.007	8.9	2.3
OS SAP-PSD (dB/year)	0.009	0.128	.609	0.045	−0.026	8.9	2.2