Pearson’s correlation coefficients of diabetic parameters and structural ERG parameters
| Parameters | HbA1c | Duration of DM |
| VD of SCP (parafovea) | (−0.009, 0.944) | (−0.332, 0.007) |
| VD of SCP (perifovea) | (−0.131, 0.318) | (−0.280, 0.023) |
| VD of DCP (parafovea) | (0.197, 0.132) | (−0.372, 0.002)* |
| VD of DCP (perifovea) | (0.016, 0.902) | (−0.263, 0.033) |
| FD300 | (−0.026, 0.844) | (−0.206, 0.098) |
| GCC thickness | (−0.201, 0.123) | (−0.121, 0.332) |
| Peripapillary VD | (−0.71, 0.590) | (0.021, 0.866) |
| RNFL thickness | (0.125, 0.342) | (−0.111, 0.373) |
| 16 Tds implicit time | (0.434, 0.001)* | (−0.066, 0.600) |
| 16 Tds amplitude | (0.044, 0.739) | (0.027, 0.829) |
| 32 Tds implicit time | (0.448, <0.001)* | (−0.060, 0.635) |
| 32 Tds amplitude | (0.051, 0.700) | (−0.020, 0.874) |
Pearson’s correlation coefficients and the original p values (in brackets).
*Statistically significant after Bonferroni correction.
DCP, deep capillary plexus; DM, diabetes mellitus; ERG, electroretinography; FD300, foveal density in a 300 µm wide region around foveal avascular zone; GCC, ganglion cell complex; RNFL, retinal nerve fibre layer; SCP, superficial capillary plexus; VD, vessel density.