Table 1.
Baseline characteristics of the study population
| Parameter |
Overall population N = 266 |
Renal resistive index < 0.70 N = 166 |
Renal resistive index ≥ 0.70 N = 100 |
P |
|---|---|---|---|---|
| Clinical data | ||||
| Age, years | 65.4 ± 9.8 | 62.1 ± 8.7 | 71 ± 8.9 | <.001 |
| Men | 133 (50) | 89 (53.6) | 44 (44) | .13 |
| Current smoker | 71 (26.7) | 53 (31.9) | 18 (18) | .013 |
| Familial history of artery disease | 48 (18) | 33 (19.9) | 15 (15) | .32 |
| History of hypertension | 247 (92.9) | 150 (90.4) | 97 (97) | .042 |
| Treatment for sleep apnea | 19(7.1) | 15(9) | 4(4) | .12 |
| Body Mass Index, Kg/m2 | 31.85 ± 6.51 | 31.4 ± 6.66 | 32.1 ± 6.27 | .75 |
| Abdominal circumference, cm | 111.4 ± 15 | 111 ± 15.1 | 112.1 ± 14.7 | .58 |
| Duration of diabetes, months | 140.2 ± 90.5 | 118.6 ± 74.7 | 175 ± 102.5 | <.001 |
| Ankle brachial index | 1.1 (1; 1.2) | 1.1 (1; 1.2) | 1.1 (1; 1.2) | .67 |
| Biological data | ||||
| Hemoglobin level, g/dL | 13.6 ± 1.5 | 14 ± 1.5 | 13 ± 1.4 | <.001 |
| Us‐C‐reactive protein, mg/L | 2.4 (1; 5.4) | 2.2 (1; 4.5) | 2.6 (0.9; 6.4) | .31 |
| Creatinine level, mg/L | 8 (7; 9) | 8 (7; 9) | 8 (7; 10) | .047 |
| eGFR, mL/mn/1.73 m2 | 90 (77; 108) | 92 (81; 110) | 82 (67; 104) | <.001 |
| Creatininuria, mg/L | 741 (532; 1084) | 793 (593.5; 1106) | 668 (460; 935) | .018 |
| Natriuresis, mEq/L | 79 (54; 109) | 83 (52; 115) | 78.5 (56.5; 99.5) | .34 |
Continuous variables are presented using mean ± standard deviation or median (Q1; Q3) otherwise. Categorical variables are presented using N (%).