Table 2.
Mean thickness measurements (μm) of the RPE–photoreceptor complex, RNFL, and GCL in the foveal and paracentral areas of patients with DM and healthy controls.
| Layers | Thickness (mean) | 95% CI of the difference | P value | |
|---|---|---|---|---|
| Patients with DM (μm) | Healthy controls (μm) | |||
| RNFL_F | 12.31 ± 2.28 | 12.50 ± 2.35 | −1.19, 0.82 | 0.713 |
| RNFL_PC | 22.75 ± 2.65 | 23.30 ± 2.18 | −1.65, 0.54 | 0.319 |
| GCL_F | 14.70 ± 4.21 | 15.60 ± 7.51 | −3.27, 1.47 | 0.454 |
| GCL_PC | 49.87 ± 5.64 | 50.69 ± 4.06 | −3.10, 1.44 | 0.472 |
| RPC_F | 89.37 ± 4.20 | 87.43 ± 3.19 | 0.23, 3.65 | 0.027∗ |
| RPC_PC | 81.46 ± 2.52 | 79.61 ± 2.23 | 0.79, 2.91 | 0.001∗ |
Abbreviations: F: foveal area; PC: paracentral area; RPC: RPE–photoreceptor complex; CI: confidence interval; RNFL: retinal nerve fiber layer; GCL: ganglion cell layer; RPE: retinal pigment epithelium. ∗P < 0.05 shows a significant difference.