Table 1.
Group characteristics at baseline (mean±standard deviation).
Fig 1.
The two blue circles demarcate the measurement area. The inner circle has a diameter of 1.5 disc diameter. The outer circle has a diameter of 3.0 disc diameters. The main retinal vessel segments in this area are chosen according to a set of detailed rules (Oxymap protocol from November 21st 2013, simple means used).
Table 2.
Retinopathy grades at baseline and change in retinopathy grade during follow-up.
Fig 2.
The change in oxygen saturation.
Change from baseline to follow-up visit, plotted against the time of follow-up. Each point denotes one patient (n = 214). A. Saturation in retinal arterioles increased by 0.75 percent per year of follow-up (p<0.0001). B. Saturation in retinal venules increased by 1.74 percent per year of follow-up (p<0.0001). C. The arteriovenous difference in saturation decreased by 0.99 percent per year of follow-up (p<0.0001).
Fig 3.
The change in red lesion count.
Plotted as a function of follow-up time. There was no significant change in red lesions with time.
Table 3.
Linear regression between the change in saturation (ΔSatO2) between visits and change in diameter (ΔDiameter).