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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Curr Eye Res. 2015 Nov 10;41(7):977–986. doi: 10.3109/02713683.2015.1083588

Table 2. Correlation between retinal structure, function and visual behavior at different concentrations of PQ.

The slope of the line of best fit, determined by regression analysis, is shown for comparisons between the structure (OCT), function (ERG) and visual behavior (OKT) of the retina at the various concentrations of PQ over the course of the three week time period. The slope indicates the relationship between the rates of degeneration across the two measurements being compared. The coefficient of determination (r2) indicates the variability in the difference between measurement techniques, with a higher r2 indicating less variability.

Concentration OCT vs a-wave OCT vs b-wave OCT vs OKT
Slope r2 Slope r2 Slope r2
0 mM 2232.5 0.117 3517.8 0.0441 0.0431 0.1262
0.2 mM 1382 0.2639 6470.5 0.2049 0.0408 0.2243
0.4 mM 4486.2 0.1495 14150 0.619 0.0349 0.3472
0.6 mM 2646.6 0.5376 7255.6 0.5412 0.0726 0.4128
0.8 mM 1698.4 0.6906 5296.9 0.5613 0.0829 0.512
1 mM 2086.4 0.6114 1742.3 0.1167 0.2095 0.5132
Concentration OKT vs a-wave OKT vs b-wave b-wave vs a-wave
Slope r2 Slope r2 Slope r2
0 mM 275.75 0.117 −514.99 0.0625 0.4676 0.0351
0.2 mM 201.9 0.2639 616.07 0.2505 2.7425 0.7666
0.4 mM 136.96 0.1495 477.7 0.2015 2.6259 0.7641
0.6 mM 278.93 0.5376 635.92 0.3641 2.3881 0.7919
0.8 mM 221.11 0.6906 446.18 0.3064 2.103 0.4818
1 mM 745.52 0.6114 843.05 0.2443 0.9647 0.2978