Quantitative comparison of the macular vessel density and the foveal avascular zone (FAZ) between patients and controls
| Group 1 | Group 2 | Group 3 | Control group | P value* | P value† | P value‡ | P value§ | P value¶ | P value** | |
| SCP | ||||||||||
| Vessel density | 0.390±0.019 | 0.387±0.019 | 0.398±0.020 | 0.406±0.019 | 0.9 | 0.05 | 0.02†† | 0.2 | 0.003†† | 0.4 |
| FAZ (mm2) | 0.346±0.15 | 0.297±0.096 | 0.340±0.131 | 0.281±0.117 | 0.6 | 0.9 | 0.3 | 0.6 | 0.9 | 0.4 |
| DCP | ||||||||||
| Vessel density | 0.406±0.007 | 0.412±0.011 | 0.407±0.016 | 0.425±0.024 | 0.6 | 0.9 | 0<0.001†† | 0.7 | 0.04†† | 0.001†† |
| FAZ (mm2) | 0.728±0.192 | 0.706±0.218 | 0.771±0.240 | 0.550±0.133 | 0.9 | 0.6 | 0.03†† | 0.4 | 0.1 | 0.003†† |
Group 1, reticular pseudodrusen (RPD); Group 2, RPD+outer retinal atrophy; Group 3, drusen.
Each value is expressed as mean±SD.
All the P values refer to one-way analysis of variance with Bonferroni correction and multiple comparison between groups.
*Comparison between group 1 and group 2.
†Comparison between group 1 and group 3.
‡Comparison between group 1 and control group.
§Comparison between group 2 and group 3.
¶Comparison between group 2 and control group.
**Comparison between group 3 and control group.
††Statistically significant value.
DCP, deep capillary plexus; SCP, superficial capillary plexus.