Research Article
Reliability of Using Retinal Vascular Fractal Dimension as a Biomarker in the Diabetic Retinopathy Detection
Table 2
Comparison between FD values in different DR groups (ANOVA test).
| DR grade | Mean difference | Std. error | value | 95% confidence interval | Lower bound | Upper bound |
| ROI: full FOV | R0 | R1 | 0.00123 | 0.00319 | 0.981 | −0.0070 | 0.0094 | R2 | 0.00834 | 0.00267 | 0.010 | 0.0015 | 0.0152 | R3 | −0.00046 | 0.00265 | 0.998 | −0.0073 | 0.0063 |
| ROI: full FOV | R1 | R2 | 0.00711 | 0.00358 | 0.195 | −0.0021 | 0.0163 | R3 | −0.00169 | 0.00356 | 0.965 | −0.0109 | 0.0075 |
| ROI: full FOV | R2 | R3 | −0.00879 | 0.00311 | 0.025 | −0.0168 | −0.0008 |
| ROI: | R0 | R1 | −0.00324 | 0.00313 | 0.730 | −0.0113 | 0.0048 | R2 | 0.00696 | 0.00263 | 0.040 | 0.0002 | 0.0137 | R3 | 0.00086 | 0.00260 | 0.987 | −0.0058 | 0.0076 |
| ROI: | R1 | R2 | 0.01020 | 0.00352 | 0.020 | 0.0011 | 0.0193 | R3 | 0.00410 | 0.00350 | 0.646 | −0.0049 | 0.0131 |
| ROI: | R2 | R3 | −0.00610 | 0.00306 | 0.191 | −0.0140 | 0.0018 |
|
|
The mean difference is significant at the 0.05 level. One-way ANOVA test with null hypothesis that the means of distributions are equal.
|