Table 1 Patient Characteristics (Preoperative, Intraoperative, and Postoperative)
Patient characteristic | Total sampl(N = 507) | Full Feature Set (q = 31) | Selected Feature Set (q = 31) | Units | ||
|---|---|---|---|---|---|---|
Training data(N = 405) | Test data(N = 102) | Training data(N = 405) | Test data(N = 102) | |||
Delirium ( N (%) ) | 141 (28%) | 113 (28%) | 28(27%) | 112 (28%) | 29(28%) | Â |
Preoperative information | Â | Â | Â | Â | ||
Female Sex ( N (%) ) | 300 (59%) | 235 (58%) | 65(63%) | 235 (58%) | 65(63%) | Â |
Education score (mean (SD)* | 0.5 (0.8) | 0.5 (0.8) | 0.5 (0.7) | 0.5 (0.8) | 0.5 (0.7) | Point |
Age (mean (SD)) | 55.7 (13.5) | 55.4 (13.6) | 56.7 (13.0) | 55.4 (13.7) | 56.7 (13.0) | Years |
Height (mean (SD)) | 157.1 (29.6) | 156.9 (29.8) | 157.5 (28.8) | 157.0 (29.8) | 157.5 (28.8) | Cm |
Weight (mean (SD)) | 58.2 (11.3) | 58.0 (11.1) | 58.7 (11.7) | 58.0 (11.1) | 58.7 (11.7) | Kg |
Alcohol abuse ( N (%) ) | 29 (6%) | 20 (5%) | 9(9%) | 20 (5%) | 9(9%) | Â |
Smoke abuse ( N (%) ) | 84 (17%) | 66 (16%) | 18 (18%) | 66 (16%) | 18 (18%) | Â |
Coronary heart disease ( N (%) ) | 34 (7%) | 29 (7%) | 5 (5%) | Â | Â | Â |
Cerebral infarction ( N (%) ) | 33 (7%) | 21(5%) | 5(5%) | Â | Â | Â |
Diabetes ( N (%) ) | 29 (6%) | 21 (5%) | 8 (8%) | Â | Â | Â |
Hypertension ( N (%) ) | 87 (17%) | 71 (15%) | 16 (16%) | Â | Â | Â |
LVEF (mean (SD) | 58.7 (10.7) | 58.8 (11.9) | 57.6 (12.8) | 58.9 (10.1) | 57.6 (12.8) | % |
Intraoperative information | Â | Â | Â | Â | Â | Â |
CPB duration (mean (SD)) | 157.3 (73.5) | 158.3 (71.0) | 153.1 (82.5) | 158.3 (71.0) | 153.1 (82.5) | Min |
ACC duration (mean (SD)) | 97.9 (44.1) | 97.6 (43.0) | 96.7 (48.3) | 98.2 (43.0) | 96.7 (48.3) | Min |
Anesthesia duration (mean (SD)) | 258.6 (100.5) | 260.7 (101.6) | 250.2 (96.3) | Â | Â | Min |
Postoperative information | Â | Â | Â | Â | Â | Â |
IABP employ ( N (%) ) | 66 (13%) | 51 (13%) | 15 (15%) | 51 (13%) | 15 (15%) | Â |
ECMO employ ( N (%) ) | 39 (8%) | 30 (7%) | 6 (6%) | Â | Â | Â |
WBC (mean (SD)) | 14.1 (5.7) | 14.2(5.9) | 13.7 (5.0) | Â | Â | 109/L |
NEUT (mean (SD)) | 11.7 (5.1) | 11.8(5.3) | 11.4 (4.5) | Â | Â | 109/L |
LY (mean (SD)) | 1.4 (0.9) | 1.4 (1.0) | 1.4 (0.9) | 1.4 (1.0) | 1.4 (0.9) | 109/L |
BUN (mean (SD)) | 8.7 (4.9) | 8.6 (5.0) | 8.7 (4.2) | 8.8 (5.0) | 8.7 (4.2) | mmol/L |
TBLL (mean (SD)) | 25.3 (20.9) | 24.9 (21.3) | 24.0 (19.1) | 25.6 (21.2) | 24.0 (19.1) | mmol/L |
Serum creatinine (mean (SD)) | 106.4 (92.4) | 108.6 (99.9) | 97.3 (52.2) | 108.6 (99.9) | 97.3 (52.2) | umol/L |
Serum albumin (mean (SD)) | 35.4 (22.6) | 35.7(25.0) | 33.7(6.8) | 35.8(25.0) | 33.7(6.8) | g/L |
PH (mean (SD)) | 7.3 (0.8) | 7.3 (0.7) | 7.3 (1.0) | 7.3 (0.7) | 7.3 (1.0) | Â |
PaCO2 (mean (SD)) | 38.5 (15.1) | 38.5 (16.3) | 38.0 (8.6) | 38.6 (16.3) | 38.0 (8.6) | mmHg |
PaO2 (mean (SD)) | 249.0 (102.9) | 249.8 (102.8) | 245.5 (103.5) | Â | Â | mmHg |
Na (mean (SD)) | 139.1 (18.9) | 139.58 (18.7) | 134.4 (20.0) | Â | Â | mmol/L |
K (mean (SD)) | 3.9 (0.7) | 3.9 (0.7) | 3.9 (0.7) | Â | Â | mmol/L |
Glu (mean (SD)) | 9.1 (3.7) | 9.1 (3.6) | 8.9 (3.9) | Â | Â | mmol/L |
Pain score (mean (SD))* | 2.2 (0.9) | 2.2 (0.9) | 2.2 (1.0) | 9.1 (3.6) | 8.9 (3.9) | point |