Table 3.
Correlation coefficients between RRI and investigated parameters.
| Correlation coefficient* | p | |
|---|---|---|
| Clinical parameters | ||
| Age (years) | 0.55 | <0.001 |
| MAP (mmHg) | 0.18 | 0.2 |
| Kidney disease parameters | ||
| eGFR (mL/min) | −0.34 | 0.02 |
| UAlb/Cr (g/g) | −0.08 | 0.5 |
| UP/Cr (g/g) | −0.14 | 0.3 |
| Hematuria (mm3) | 0.14 | 0.3 |
| Systemic atherosclerosis parameters | ||
| Atherosclerosis score | 0.50 | 0.001 |
| AAC score | 0.50 | <0.01 |
| IMT (mm) | 0.34 | 0.02 |
| Histopathologic parameters | ||
| Global glomerulosclerosis (%)† | 0.31 | 0.03 |
| Segmental glomerulosclerosis (%)† | 0.16 | 0.3 |
| GBM thickness (nm) | 0.22 | 0.1 |
| Interstitial fibrosis/Tubular atrophy‡ | 0.35 | 0.01 |
| Arteriosclerosis§ | 0.18 | 0.2 |
*Pearson or Spearman according to distribution.
†percentage of the total number of examined glomeruli.
‡Kliem classification modified: 0 absent; 0.5 focal area; 1 < 10%; 2 10–25%; 3 25–50%; 4 > 50%.
§Arteriosclerosis score: 1, absent; 2, moderate; 3, severe.
AAC score: abdominal aortic calcification score; eGFR: estimated glomerular filtration rate (CKD-EPI); GBM: glomerular basement membrane; IMT: intima media thickness; MAP: mean arterial blood pressure; UAlb/Cr: urinary albumin to creatinine ratio; UP/Cr: urinary protein to creatinine ratio.