Table 2 Comparison of nutritional and laboratory results between patients with and without postoperative delirium
|  | Non-POD (n = 302) | POD (n = 67) | p-value |
|---|---|---|---|
PNI | 46.8 (44.2,49.3) | 45.6 (43.5,47.8) | 0.019 |
PNI | Â | Â | 0.039 |
 < 45.6 | 122 (41.36%) | 37 (55.22%) |  |
 ≥ 45.6 | 173 (58.64%) | 30 (44.78%) |  |
Albumin, g/L | 41.3 (39.2,43.2) | 40.6 (38.6,41.8) | 0.028 |
Lymphocyte, × 109/L | 1.1 (0.8,1.4) | 1.1 (0.8,1.5) | 0.619 |
Leukocyte, × 109/L | 9.7 (7.9,11.7) | 9.6 (8.1,11.5) | 0.827 |
Erythrocyte, × 1012/L | 4 (3.6,4.3) | 3.9 (3.6,4.2) | 0.827 |
Hemoglobin, g/L | 121 (110,130) | 119.5 (107,127.5) | 0.361 |
Platelet, × 109/L | 198.5 (161.2,238.8) | 205 (174,257) | 0.246 |
Sodium, mmol/L | 138 (136,140) | 138 (136.2,140) | 0.831 |
Chlorine, mmol/L | 103 (100,105.2) | 102 (99.2,105) | 0.12 |
Potassium, mmol/L | 3.9 (3.7,4.2) | 3.9 (3.6,4.2) | 0.496 |
Calcium, mmol/L | 2.2 (2.1,2.3) | 2.2 (2.1,2.3) | 0.22 |
ALT, IU/L | 14 (11,17) | 12 (10,16) | 0.063 |
AST, IU/L | 18 (16,22) | 18 (15,22) | 0.425 |
Urea, mmol/L | 6.5 (5.3,8.3) | 7.4 (5.7,9.4) | 0.061 |
Creatine, μmol/L | 57 (47.8,70) | 59.5 (52.2,75.8) | 0.107 |
Total protein, g/L | 65.9 (62,70.6) | 65.7 (62,68.2) | 0.386 |
Glucose, mmol/L | 7.7 (6.6,10.1) | 7.7 (6.6,9) | 0.448 |
Glycosylated hemoglobin, % | 5.8 (5.4,6.4) | 6 (5.5,6.6) | 0.239 |
PaCO2, mmHg | 32.5 (29.4,36.1) | 32.2 (29.5,34.6) | 0.774 |
PaO2, mmHg | 73.7 (66.8,81.4) | 72.3 (66.9,78.9) | 0.252 |
Lactic acid, mmol/L | 1.1 (0.8,1.6) | 0.9 (0.7,1.4) | 0.472 |
C-reactive protein, mg/L | 18 (4.6,58.1) | 39.6 (6.9,65.6) | 0.219 |
Thyroid stimulating hormone, mIU/L | 1.8 (1,3.2) | 1.3 (0.7,1.9) | 0.003 |
Total tetraiodothyroxine, ng/ml | 97.4 (83.4,112.9) | 100.2 (86.4,113.6) | 0.329 |
Total triiodothyroxine, ng/ml | 1.2 (1.1,1.6) | 1.3 (1.1,1.6) | 0.939 |
Free tetraiodothyroxine, ng/ml | 16.5 (14.4,18.7) | 16.1 (14.4,18.8) | 0.914 |
Free triiodothyroxine, ng/ml | 3.3 (2.9,3.8) | 3.1 (2.7,3.5) | 0.054 |