Table 1 Univariate analysis according to diagnosis of postoperative delirium
NPD(n=100) | PD(n=43) | p | |
|---|---|---|---|
75.9 ± 8.7 | 81.4 ± 7.3 | <0.001 | |
BMI (kg/m2), medians (IQRs) | 23.1(21.3,26.2) | 23.7(21.7,25.4) | 0.65 |
ASA classification, n (%) | 0.006 | ||
I | 12(12.0) | 2(4.7) | |
II | 76(76.0) | 26(60.5) | |
III | 12(12.0) | 15(34.9) | |
Female, n (%) | 70 (70.0) | 31(72.1) | 0.801 |
Albumin level (g/l), (mean ± SD) | 34.7 ± 3.8 | 32.6 ± 4.2 | 0.003 |
Hemoglobin level (g/l), (mean ± SD) | 114.1 ± 21.1 | 105.8 ± 16.5 | 0.025 |
Fractures to the surgery time interval (day), medians (IQRs) | 5.0(3.0,8.0) | 6.0(4.0,9.0) | 0.128 |
Preoperative PSQI score, (mean ± SD) | 4.3 ± 2.7 | 9.4 ± 4.8 | < 0.001 |
Operation type, n (%) | 0.045 | ||
Total hip arthroplasty | 25(25.0) | 3(7.0) | |
Bipolar hemiarthroplasty | 26(26.0) | 14(32.6) | |
Internal fixation | 49(49.0) | 26(60.5) | |
Operation time (min), (mean ± SD) | 119.9 ± 52.2 | 123.3 ± 51.0 | 0.719 |
Anesthesia duration (min), (mean ± SD) | 176.9 ± 54.4 | 175.6 ± 48.9 | 0.891 |
Intraoperative blood loss (ml), (mean ± SD) | 182.2 ± 146.8 | 159.3 ± 92.7 | 0.348 |
Hypertension, n (%) | 50 (50.0) | 24 (55.8) | 0.523 |
Coronary heart disease, n (%) | 22 (22.0) | 18 (41.9) | 0.015 |
Diabetes, n (%) | 32 (32.0) | 14 (32.6) | 0.948 |
Stroke,n (%) | 9(9.0) | 7(16.3) | 0.329 |
Postoperative ICU admissions, n (%) | 30(30) | 30(69.8) | < 0.001 |