Table 2.
Correlation analysis between renal function indicators and retinal microvascular parameters
| Indicator | AVR | Df | TORT | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B-AVR | P-value | C-AVR | P-value | CTR-Df | P-value | UWF-Df | P-value | CTR-TORT | P-value | UWF-TORT | P-value | |
| eGFR | 0.00 (−0.01 to 0.02) | 0.480 | 0.00 (−0.01 to 0.02) | 0.523 | 0.19 (0.17–0.21) | <0.001* | 0.29 (0.27–0.31) | <0.001* | −0.01 (−0.02 to 0.00) | 0.213 | 0.07 (0.05–0.08) | <0.001* |
| UCr (mmol/L) | −0.08 (−0.11 to −0.04) | <0.001* | −0.06 (−0.10 to −0.03) | <0.001* | 0.11 (0.07–0.14) | <0.001* | 0.25 (0.20–0.29) | <0.001* | 0.00 (−0.03 to 0.04) | 0.905 | 0.06 (0.03–0.10) | <0.001* |
| ACR (mg/g) | 0.03 (−0.01 to 0.07) | 0.089 | −0.03 (−0.06 to 0.01) | 0.187 | −0.06 (−0.10 to −0.02) | 0.002* | −0.02 (−0.06 to 0.02) | 0.399 | 0.04 (0.00–0.08) | 0.030* | −0.10 (−0.14 to −0.06) | <0.001* |
| UOB | 0.00 (−0.02 to 0.03) | 0.882 | −0.04 (−0.07 to −0.02) | <0.001* | −0.00 (−0.02 to 0.02) | 0.933 | 0.07 (0.05–0.10) | <0.001* | −0.01 (−0.04 to 0.01) | 0.341 | −0.01 (−0.03 to 0.01) | 0.421 |
| UA (µmol/L) | −0.03 (−0.04 to −0.02) | <0.001* | −0.07 (−0.08 to −0.06) | <0.001* | −0.04 (−0.05 to −0.03) | <0.001* | −0.02 (−0.03 to −0.01) | 0.001* | 0.00 (−0.01 to 0.02) | 0.384 | 0.00 (−0.01 to 0.01) | 0.904 |
| UMAlb (mg/L) | 0.02 (−0.02 to 0.06) | 0.284 | −0.05 (−0.09 to −0.01) | 0.011* | −0.09 (−0.13 to −0.05) | <0.001* | −0.01 (−0.05 to 0.03) | 0.525 | 0.03 (−0.01 to 0.07) | 0.123 | −0.08 (−0.12 to −0.05) | <0.001* |
| Cr (µmol/L) | −0.01 (−0.02 to 0.01) | 0.351 | −0.03 (−0.05 to −0.02) | <0.001* | −0.12 (−0.13 to −0.11) | <0.001* | −0.11 (−0.12 to −0.09) | <0.001* | −0.00 (−0.02 to 0.01) | 0.634 | −0.07 (−0.08 to −0.05) | <0.001* |
| Urea (mmol/L) | −0.02 (−0.03 to −0.01) | 0.001* | −0.04 (−0.05 to −0.03) | <0.001* | −0.14 (−0.15 to −0.13) | <0.001* | −0.15 (−0.16 to −0.14) | <0.001* | −0.01 (−0.02 to 0.00) | 0.289 | −0.07 (−0.08 to −0.06) | <0.001* |
| Alb (g/L) | −0.03 (−0.06 to 0.01) | 0.141 | −0.12 (−0.15 to −0.09) | <0.001* | −0.21 (−0.24 to −0.18) | <0.001* | −0.17 (−0.21 to −0.14) | <0.001* | −0.02 (−0.05 to 0.01) | 0.259 | −0.10 (−0.13 to −0.06) | <0.001* |
AVR arteriovenous ratio, Df fractal dimension, TORT vascular tortuosity, UWF ultra-wide field, UCr urinary creatinine, ACR urinary albumin-to-creatinine ratio, UOB urine occult blood, UA blood uric acid, UMAlb urinary microalbuminuria, Cr blood creatinine, Urea blood urea, Alb blood albumin.
*P < 0.05.