Table 2 Baseline characteristics according to preoperative serum Se level quartile
From: Preoperative serum selenium predicts acute kidney injury after adult cardiac surgery
Q1 (154.46–163.30 µg/L) | Q2 (155.98-158.33 µg/L) | Q3 (160.25-162.33 µg/L) | Q4 (164.60-168.74 µg/L) | P value | |
|---|---|---|---|---|---|
No. of patients | 114 | 113 | 113 | 113 | |
Age (years) | 61.63 (16.52) | 62.81 (16.81) | 62.55 (14.74) | 64.88 (14.07) | < 0.001 |
Female sex, n (%) | 60 (52.63) | 49 (43.36) | 37 (32.74) | 36 (31.86) | 0.003 |
BMI (kg/m2) | 27.65 (4.74) | 26.8 (4.82) | 26.69 (4.56) | 26.24 (4.25) | < 0.001 |
Smoking, n (%) | 20 (17.54) | 18 (15.93) | 28 (24.78) | 26 (23.01) | 0.286 |
Hypertension, n (%) | 42 (36.84) | 33 (29.2) | 43 (38.05) | 54 (47.79) | 0.039 |
Diabetes, n (%) | 28 (24.56) | 33 (29.2) | 28 (24.78) | 33 (29.2) | 0.757 |
Chronic heart failure, n (%) | 46 (40.35) | 38 (33.63) | 31 (27.43) | 34 (30.09) | 0.185 |
Atrial fibrillation, n (%) | 18 (30) | 18 (36.73) | 9 (24.32) | 14 (38.89) | 0.240 |
COPD, n (%) | 2 (1.75) | 2 (1.77) | 2 (1.77) | 3 (2.65) | 0.951 |
Surgery type, n (%) | 0.039 | ||||
CABG | 43 (37.72) | 43 (38.05) | 55 (48.67) | 34 (30.09) | |
Valve surgery | 71 (62.28) | 70 (61.95) | 58 (51.33) | 79 (69.91) | |
Anesthesia time (min) | 226.51 (38.79) | 230.46 (43.48) | 233.95 (42.24) | 222.88 (36.94) | < 0.001 |
CPB time (min) | 125.17 (27.67) | 118.93 (26.17) | 123.29 (26.89) | 116.43 (28.02) | < 0.001 |
Serum creatinine (µmol/L) | 88.9 (10.53) | 85.65 (9.17) | 85.49 (8.86) | 87.1 (9.18) | < 0.001 |
Hemoglobin (g/dL) | 126.37 (7.67) | 128.58 (7.54) | 127.82 (8.42) | 128.05 (8.46) | < 0.001 |
Albumin (g/dL) | 3.83 (0.94) | 4.16 (0.98) | 4.07 (0.95) | 4 (0.89) | < 0.001 |