Table 1.
Characteristics of the patients classified according to their MDRD class.
| All (N = 4394) |
CKD Grade 3 N = 221 (5%) |
CKD Grade 2 N = 2383 (54.2%) |
Normal eGFR N = 1579 (35.9%) |
Hyperfiltration N = 210 (4.8%) |
Overall p-Value | |
|---|---|---|---|---|---|---|
| Age | 57 (48; 65) | 68 (61; 74) | 60 (51; 67) | 54 (46; 62) | 48 (33; 58) | <0.01 |
| Sex (Woman) N (%) | 3379 (76.9) | 146 (66.1) | 1871 (78.5) | 1208 (76.5) | 154 (73.3) | <0.01 |
| Hypertension N (%) | 1731 (52.8) | 148 (72.5) | 993 (54.2) | 518 (47.3) | 71 (49.7) | <0.01 |
| Diabetes N (%) | 504 (15.4) | 48 (23.5) | 244 (13.3) | 174 (15.90) | 37 (25.9) | <0.01 |
| No hypertension No diabetes N (%) |
1383 (31.5) | 50 (22.6) | 761 (31.9) | 515 (32.6) | 57 (27.1) | 0.01 |
| Initial values | ||||||
| BMI (kg/m2) | 33.8 (30.6; 37.7) | 34.4 (31.3; 38.1) | 33.5 (30.4; 37.4) | 33.9 (30.7; 37.8) | 35.4 (31.0; 38.9) | <0.01 |
| Weight (kg) | 92.2 (81.2; 105.2) | 96.9 (81.4; 109.6) | 91.3 (80.8; 104.1) | 92.5 (81.5; 106.1) | 94.9 (83.1; 109.6) | <0.01 |
| Waist circumference (cm) | 110 (101; 120) | 114 (104; 123) | 109 (101; 118) | 110 (101; 120) | 112 (103; 123) | <0.01 |
| Muscle mass (%) | 28.9 (27.0; 31.9) | 28.0 (25.6; 31.0) | 28.5 (26.8; 31.5) | 29.3 (27.5; 32.3) | 30.5 (28.0; 33.1) | <0.01 |
| Fat mass (%) | 42.0 (38.6; 45.3) | 42.7 (39.4; 46.6) | 42.1 (38.8; 45.3) | 41.6 (38.2; 45.2) | 41.5 (37.9; 45.0) | <0.01 |
| Serum creatinine (mg/L) | 7.91 (7.0; 9.1) | 11.5 (10.4; 13.7) | 8.4 (7.8; 9.5) | 7.0 (6.5; 7.6) | 5.8 (5.3; 6.6) | <0.01 |
| MDRD (mL/min/1.73 m2) | 85.0 (74.0; 97.0) | 54.0 (49.0; 57.5) | 78.0 (71.0; 83.0) | 98.0 (93.0; 106.0) | 130.0 (124.0; 137.5) | <0.01 |
| Duration between two measures (days) | 238 (205; 282) | 234 (210; 276) | 237 (205; 281) | 239 (205; 284) | 236 (205; 282) | 0.89 |
Values are presented in median (interquartile range) or N (%). Hypertension and diabetes: values presented for 3782 patients who had information about medical prescription. BMI: N missing = 29; waist circumference: N missing = 2; muscle mass: N missing = 136; fat mass: N missing = 133. CKD: chronic kidney disease, eGFR: estimated glomerular filtration rate; BMI: body mass index, MDRD: Modification of Diet in Renal Disease. p-value: chi-square test for qualitative variables and Kruskal–Wallis test for quantitative variables.