Variables | Before weighting | After weighting | ||||
---|---|---|---|---|---|---|
No exposure to NE (n = 3448) | Exposure to NE (n = 1605) | SMD | No exposure to NE (n = 3502) | Exposure to NE (n = 1582) | SMD | |
Age, years | 68 [60–76] | 70 [61–77] | 0.120 | 69 [61–76] | 69 [61–76] | 0.002 |
Male gender | 2407 (67) | 1080 (67) | 0.054 | 2456 (70) | 2456 (70) | 0.036 |
BMI, kg m−2 | 27.48 [24.44–30.72] | 26.83 [23.83–30.42] | 0.017 | 27.50 [24.39–30.73] | 27.50 [24.39–30.73] | 0.005 |
Hypertension | 1925 (56) | 890 (56) | 0.008 | 1912 (55) | 1919 (55) | 0.018 |
Coronary disease | 385 (11.2) | 213 (13) | 0.064 | 380 (11) | 381 (11) | 0.078 |
Diabetes | 690 (20) | 294 (18) | 0.043 | 671 (19) | 671 (19) | 0.003 |
Dyslipidemia | 274 (8) | 107 (7) | 0.049 | 259 (7) | 258.7 (7) | 0.007 |
Chronic kidney disease | 126 (4) | 98 (6) | 0.114 | 157 (5) | 157 (5) | 0.022 |
Peripheral vascular disease | 188 (6) | 76 (5) | 0.033 | 187 (5) | 187 (5) | 0.018 |
Hemoglobin, g dl−1 | 11.52 ± 1.54 | 11.23 ± 1.64 | 0.181 | 11.3 ± 1.56 | 11.4 ± 1.43 | 0.004 |
Platelet, 103 mm−3 | 157 ± 58 | 150 ± 66 | 0.111 | 146 ± 34 | 144 ± 35 | 0.007 |
Creatinine, µ mol l−1 | 77 [64–94] | 82 [67–105] | 0.187 | 79 [65–99] | 79 [65–99] | 0.012 |
CPB time, min | 84 [56–118] | 100 [67–136] | 0.336 | 88 [58–125] | 88 [58–125] | 0.036 |
Aortic clamp time, min | 57 [35–83] | 64 [42–94] | 0.111 | 59 [37–87] | 59 [37–87] | 0.005 |
Surgery type | 0.185 | |||||
CABG | 962 (28) | 468 (29) | 1002 (29) | 1002 (29) | 0.010 | |
Valve surgery | 1254 (36) | 620 (39) | 1284 (37) | 1284 (37) | ||
Combined surgery | 336 (10) | 212 (13) | 369 (11) | 369 (11) | ||
Others | 896 (26) | 305 (19) | 847 (24) | 847 (24) | ||
SAPS II | 34 [28–40] | 40 [33–48] | 0.595 | 35 [30–43] | 35 [30–43] | 0.030 |
Inotropes | 0 (0) | 128 (8) | 0.306 | 0 (0) | 74 (5) | 0.223 |