Baseline characteristics of the patients with/without hematuria
| Total | Hematuria | No-hematuria | No. of | P value | |
| N=397 | N=91 | N=306 | missing values | ||
| Age, years | 57.7±11.3 | 59.1±10.8 | 57.3±11.5 | 0 | 0.2 |
| Men, n (%) | 249 (63) | 65 (60) | 184 (71) | 0 | 0.05 |
| BMI, kg/m2 | 24.1±3.8 | 24.7±4.0 | 23.9±3.7 | 0 | 0.08 |
| Blood pressure, mm Hg | |||||
| Systole | 135±24 | 145±27 | 132±22 | 0 | <0.0001 |
| Diastole | 75±13 | 78±15 | 75±13 | 0 | 0.04 |
| Smoking, n (%) | 0 | 0.4 | |||
| Never | 154 (39) | 30 (33) | 124 (41) | ||
| Past | 61 (15) | 14 (15) | 47 (15) | ||
| Current | 182 (46) | 47 (52) | 135 (44) | ||
| Diabetic retinopathy, n (%) | 175 (45) | 58 (65) | 117 (39) | 10 | <0.0001 |
| Laboratory findings | |||||
| Serum creatinine, mg/dL | 0.99 (0.70–1.30) | 1.23 (0.80–1.80) | 0.90 (0.70–1.20) | 0 | <0.0001 |
| Serum creatinine, μmol/L | 87.5 (61.9–114.9) | 108.7 (70.7–159.1) | 79.6 (61.9–106.1) | 0 | <0.0001 |
| eGFR, mL/min/1.73m2 | 57.6 (39.7–80.8) | 45.4 (29.0–65.7) | 61.2 (43.4–82.0) | 0 | <0.0001 |
| Proteinuria, g/day | 0.4 (0.2–2.5) | 3.1 (0.5–6.8) | 0.3 (0.1–1.0) | 8 | <0.0001 |
| HbA1c, % | 8.3±2.4 | 7.9±2.2 | 8.4±2.4 | 36 | 0.1 |
| HbA1c, mmol/mol | 67±26 | 63±24 | 68±26 | 36 | 0.1 |
| Pathological findings | |||||
| Glomerular lesion class, n (%) | 0 | <0.0001 | |||
| IIa | 127 (32) | 12 (13) | 115 (38) | ||
| IIb | 148 (37) | 25 (27) | 123 (40) | ||
| III | 99 (25) | 40 (44) | 59 (19) | ||
| IV | 23 (6) | 14 (15) | 9 (3) | ||
| IFTA score, n (%) | 0 | <0.0001 | |||
| 0 | 32 (8) | 4 (4) | 28 (9) | ||
| 1 | 220 (55) | 31 (34) | 189 (62) | ||
| 2 | 66 (17) | 22 (24) | 44 (14) | ||
| 3 | 79 (20) | 34 (37) | 45 (15) | ||
| Arteriolar hyalinosis score, n (%) | 0 | <0.02 | |||
| 0 | 55 (14) | 7 (8) | 48 (16) | ||
| 1 | 120 (30) | 22 (24) | 98 (32) | ||
| 2 | 222 (56) | 62 (68) | 160 (52) | ||
| Arteriosclerosis score, n (%) | 31 | 0.9 | |||
| 0 | 78 (21) | 17 (20) | 61 (22) | ||
| 1 | 123 (34) | 30 (36) | 93 (33) | ||
| 2 | 165 (45) | 36 (43) | 129 (46) |
BMI, body mass index; eGFR, estimated glomerular filtration rate; HbA1c, hemoglobin A1c; IFTA, intestinal fibrosis and tubular atrophy.