Table 1 Demographic characteristics and preoperative comorbidities
From: High-density lipoprotein cholesterol concentration and acute kidney injury after noncardiac surgery
characteristic | ALL (n = 60,772) | No AKI (n = 58,123) | AKI (n = 2649) | P value |
|---|---|---|---|---|
Age | 56.2 ± 15.8 | 55.9 ± 15.8 | 62.5 ± 14.5 | < 0.001 |
Gender, female | 37,226(49.2%) | 36,120(49.8%) | 1106(35.0%) | < 0.001 |
Body mass index, kg/m2 | 24.5 ± 3.7 | 24.5 ± 3.7 | 24.5 ± 4.0 | 0.936 |
Co-existing disease | ||||
 hypertension | 21,236(28.0%) | 19,889(27.4%) | 1347(42.6%) | < 0.001 |
 Coronary artery disease | 3938(5.2%) | 3588(4.9%) | 350(11.1%) | < 0.001 |
 Heart failure | 704(0.9%) | 575(0.8%) | 129(4.1%) | < 0.001 |
 Stroke | 3092(4.1%) | 2833(3.9%) | 259(8.2%) | < 0.001 |
 diabetes mellitus | 9184(12.1%) | 8516(11.7%) | 668(21.1%) | < 0.001 |
 Renal insufficiency | 1009(1.3%) | 561(0.8%) | 448(14.2%) | < 0.001 |
 Regular statin therapya | 900(0.8%) | 822(0.8%) | 78(1.6%) | < 0.001 |
ASA | ||||
 I | 18,472(24.4%) | 18,181(25.1%) | 291(9.2%) | < 0.001 |
 II | 51,065(67.6%) | 49,093(67.8%) | 1972(62.6%) | |
 III | 5900(7.8%) | 5057(7.0%) | 843(26.8%) | |
 IV | 138(0.2%) | 95(0.1%) | 43(1.4%) | |