Table 1.
Characteristics of study participants.
| Control Group (n = 64) | Intervention Group (n = 33) | |
|---|---|---|
| Age, years (median, IQR) | 66.60 (10.62) | 65.10 (13.72) |
| Sex (n, %) | ||
| Female | 24 (38) | 18 (55) |
| Male | 40 (63) | 15 (45) |
| BMI, kg/m2 (median, IQR) | 27.73 (4.72) | 27.47 (4.70) |
| Type of surgery (n, %): | ||
| Total knee arthroplasty | 49 (77) | 15 (45) |
| Total hip arthroplasty | 15 (23) | 18 (55) |
| ASA-class (n, %): | ||
| ASA 1–2 | 53 (83) | 26 (79) |
| ASA 3 | 11 (17) | 7 (21) |
| Walking aid (n, %): | ||
| Two crutches | 53 (83) | 31 (94) |
| One crutch | 1 (2) | - |
| Walking frame | 5 (8) | 1 (3) |
| Walker | 5 (8) | 1 (3) |
| LOS, days (median, IQR) | 3.00 (1) | 3.00 (0) |
IQR = interquartile range, BMI = body mass index, ASA = American Society of Anesthesiologists, LOS = length of stay in hospital, with the day of surgery being defined as day one.