- Distribution of NRS scores by groups.*
| NRS score (time) | Group control | Group ESPB | P-value† |
|---|---|---|---|
| mean±sd | mean±sd | ||
| Pre-procedure | 0.60±1.30 | 0.67±1.23 | 0.886 |
| Post-procedure 0th min | 1.20±1.08 | 1.00±1.13 | 0.625 |
| 20th minute | 2.27±1.39 | 1.60±1.24 | 0.176 |
| 40th minute | 2.73±1.03 | 1.60±1.18 | 0.009 |
| 60th minute | 3.00±1.36 | 1.40±0.99 | 0.001 |
| 2nd hour | 3.20±1.70 | 2.00±0.85 | 0.021 |
| 4th hour | 2.87±0.74 | 1.87±0.74 | 0.001 |
| 6th hour | 2.60±0.99 | 2.20±1.01 | 0.283 |
| 12th hour | 1.93±1.03 | 1.93±0.88 | >0.999 |
| 24th hour | 1.20±0.56 | 1.80±0.86 | 0.032 |
Sd: standard deviation, NRS : Numerical Pain Scale, *: Two-way repeated measures analysis of variance, †: p-values with Bonferroni correction