Table 2.
Overview of primary endpoint parameters.
| Characteristics | Iliopsoas space group (n = 21) | Posterior lumbosacral plexus group (n = 17) | P value |
|---|---|---|---|
| Frequency of IOH, n/h | 1. 09 (0–2. 14) | 3 (1. 6–4. 8) | 0. 001** |
| Absolute duration of IOH (min) | 5 (0–10) | 35 (10–45) | 0. 008** |
| Relative duration of IOH% | 6. 67 (0–17. 65) | 37. 6 (12. 99–66. 18) | 0. 004** |
| Number of hypotension (SBP < 90 mmHg) | 0 (0–1) | 1 (0–2) | 0. 238 |
| Duration of hypotension (SBP < 90 mmHg) (min) | 0 (0–5) | 5 (0–15) | 0. 181 |
| Number of hypotension (SBP < 100 mmHg) | 1 (0–2) | 4 (2–4) | 0. 001** |
| Duration of hypotension (SBP < 100 mmHg) (min) | 5 (0–10) | 35 (10–45) | 0. 008** |
| Surgery type (no. of cases) | 0. 264 | ||
| Total hip arthroplasty | 10 | 10 | |
| Hemi-arthroplasty | 7 | 3 | |
| Internal fixation of intertrochanteric fracture of femur | 0 | 2 | |
| Internal fixation of intertrochanteric fracture of femur | 2 | 0 | |
| Internal fixation of femoral neck fracture | 2 | 2 |
Values are shown as median [interquartile range] or number. n/h: numbers of hypotensive events per hour; IOH: intraoperative hypotension; SBP: systolic blood pressure. **p < 0.01.