Table 2: Sample size at 5% alpha and 80% power.
|
Outcome |
Median (IQR) (FI vs. LP) |
Mean (SD) |
Effect size |
n |
|
Pain at 15-min post-block |
3.4 (0-6) vs. 2.87 (2-4) |
3.13 ± 4.72 vs. 2.96 ± 1.58 |
0.0483 |
13,462 |
|
PACU opioid, mg |
20.8 (5.62-33.75) vs. 16.98 (5.81-22.5) |
20.06 ± 22.11 vs. 15.10 ± 13.19 |
0.2725 |
424 |
|
PACU length of stay, min |
139.72 (90-219) vs. 165.04 (113.5-183) |
149.57 ± 100.42 vs. 153.85 ± 54.10 |
-0.0531 |
11,154 |
|
Cumulative morphine consumption at 48h, mg 4 |
- |
6 ± 15.5 vs. 9 ± 10.8 |
-0.2246 |
624 |