Table I.
Patients’ demographic and clinical characteristics
| Total (n = 32) | ||
|---|---|---|
| Age (years) | Mean | 74.4 |
| SD | 5.7 | |
| Sex (male/female) | 9/23 | |
| Body mass index (kg/m2) | Mean | 24.8 |
| SD | 3 | |
| Body temperature (°C) | Mean | 36.3 |
| SD | 0.6 | |
| bSBP (mmHg) | Mean | 117.7 |
| SD | 13.5 | |
| bDBP (mmHg) | Mean | 62.6 |
| SD | 6.8 | |
| Hb (g/dL) | Mean | 12.4 |
| SD | 1.3 | |
| WBC (×102/μL) | Mean | 54.5 |
| SD | 11.4 | |
| CRP (mg/dL) | Mean | 0.129 |
| SD | 0.142 | |
| Surgical procedure | ||
| TKA and UKA | 11 | |
| THA | 10 | |
| Spinal surgery | 11 | |
| Duration of anesthesia (min) | Mean | 224.2 |
| SD | 82.8 | |
| Drainage volume (mL) | Mean | 314.4 |
| SD | 285.3 | |
| Delirium | ||
| Yes | 3 | |
| No | 29 | |
Notes: TKA=total knee arthroplasty,
UKA=unicompartmental knee arthroplasty,
THA=total hip arthroplasty,
bSBP=brachial systolic blood pressure,
bDBP=brachial diastolic blood pressure,
Hb=hemoglobin, WBC=white blood cell,
CRP=C-reactive protein