Open Access
Table 1
Baseline demographics. BMI = Body Mass Index, W = Women, L = Left, ASA = American Society of Anesthesiologists.
| Variable | Value | Range |
|---|---|---|
| Mean age, years (SD) | 71.7 (8.1) | 35–91 |
| Mean BMI, kg/m2 (SD) | 29.0 (5.2) | 15–55 |
| Sex, female % (n) | 64 (308) | |
| Laterality, left % (n) | 42.8 (206) | |
| Mean surgical time, minutes (SD) | 73.5 (20.20) | |
| ASA 1 % (n) | 6.9 (33) | |
| ASA 2 % (n) | 65.5 (315) | |
| ASA 3 % (n) | 27.3 (131) | |
| ASA 4 % (n) | 0.4 (2) | |
| Primary osteoarthritis % (n) | 88.8 (427) | |
| Post-traumatic osteoarthritis % (n) | 7.7 (37) | |
| Post-necrotic osteoarthritis % (n) | 1.4 (7) | |
| Post-rheumatic osteoarthritis % (n) | 2.0 (10) |
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