Table 1.
Baseline characteristics of the patients with CIN vs without CIN (Cys C criteria)
| Characteristic | CIN (N=52) | Non‐CIN (N=161) | P |
|---|---|---|---|
| Age (y) | 50.04±13.16 | 52.73±14.92 | .247 |
| Age >70 y, n (%) | 3 (5.8) | 21 (13.0) | .149 |
| Male, n (%) | 39 (75.0) | 125 (77.6) | .694 |
| Smoke habit, n (%) | 31 (59.6) | 76 (47.2) | .120 |
| Weight (kg) | 60.48±8.82 | 60.85±9.76 | .808 |
| Hemoglobin concentration (g/L) | 119.96±22.97 | 127.36±21.26 | .034 |
| Baseline serum creatinine (μmol/L) | 76.30±35.93 | 71.94±20.41 | .408 |
| Chronic kidney disease, n (%) | 6 (11.5) | 18 (11.2) | .943 |
| Diabetes mellitus, n (%) | 4 (7.7) | 20 (12.4) | .348 |
| Hypertension, n (%) | 8 (15.4) | 37 (23.0) | .243 |
| Hypercholesterolemia, n (%) | 7 (13.5) | 15 (9.3) | .393 |
| Hypoalbuminemia, n (%) | 22 (42.3) | 35 (21.7) | .004 |
| Dehydration state, n (%) | 6 (11.5) | 7 (4.3) | .090 |
| Baseline eGFR (mL/min/1.73 m²) | 98.63±23.76 | 99.26±20.31 | .853 |
| Baseline eGFR <90 (mL/min/1.73 m²) | 14 (26.9) | 48 (29.8) | .690 |
| Baseline serum CysC level (mg/L) | 1.65±0.73 | 1.74±0.63 | .389 |
| Contrast media volume (mL) | 69.00±55.15 | 58.64±46.00 | .181 |
| Multiple CM administrations within 2 wk, n (%) | 28 (53.8) | 92 (57.1) | .677 |
| In‐hospital stay length (d) | 13.71±7.63 | 12.94±5.65 | .503 |
CIN, contrast‐induced nephropathy; eGFR, estimated glomerular filtration rate; CysC, cystatin C; CM, contrast media.