Table 1 Average vessel tortuosity of “Normal” and “Abnormal” groups at different circular regions of interest.
From: A novel method of quantifying retinal vascular tortuosity in retinopathy of prematurity
Multiplier* | Normal group | Abnormal group | P-value |
|---|---|---|---|
2x | 8.50 [5.29–11.71] | 19.02 [-0.49–38.53] | 0.277 |
4x | 29.01 [22.04–35.97] | 72.12 [38.31–105.93] | 0.017 |
6x | 55.71 [43.21–68.21] | 155.37 [102.88–207.86] | < 0.001 |
8x | 66.85 [55.59–78.12] | 208.76 [148.44–269.08] | < 0.001 |
10x | 87.66 [72.51–102.80] | 281.99 [215.22–348.77] | < 0.001 |
12x | 102.15 [85.85–118.44] | 361.80 [283.84–439.76] | < 0.001 |
14x | 108.93 [90.16–127.70] | 419.18 [312.91–525.46] | < 0.001 |
16x | 131.61 [98.92–164.29] | 470.23 [313.68–626.78] | 0.002 |
18x | 152.63 [114.31–190.94] | 633.72 [154.36–1113.07] | 0.047 |
20x | 199.84 [30.92–368.77] | N.A. | N.A. |
