Table 3 Comparison across reviewers for pre- and postoperative quality of ultrasound visualization and confidence in performing ISB. Values are mean (SD)
R1a (N = 29) | R2a (N = 29) | R3a (N = 29) | Total (N = 87) | p-value | ||
|---|---|---|---|---|---|---|
Quality of ultrasound visualization | ||||||
Pre-op | Mean (SD) | 4.4 (0.7) | 4.70 (0.5) | 4.5 (0.5) | 4.5 (0.6) | 0.218 |
Range | 3.0–5.0 | 3.0–5.0 | 4.0–5.0 | 3.0–5.0 | ||
Post-op | Mean (SD) | 3.7 (0.9) | 3.9 (0.8) | 3.8 (0.9) | 3.8 (0.9) | 0.721 |
Range | 3.0–5.0 | 3.0–5.0 | 2.0–5.0 | 2.0–5.0 | ||
Confidence in performing ISB | ||||||
Pre-op | Mean (SD) | 4.8 (0.384) | 4.9 (0.4) | 4.8 (0.4) | 4.8 (0.4) | 0.444 |
Range | 4.0–5.0 | 3.0–5.0 | 4.0–5.0 | 3.0–5.0 | ||
Post-op | Mean (SD) | 4.1 (1.0) | 4.2 (0.8) | 4.3 (0.8) | 4.2 (0.9) | 0.657 |
Range | 3.0–5.0 | 3.0–5.0 | 3.0–5.0 | 3.0–5.0 | ||