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VAS for pain intensity.
| RA | N2O | p-value (RA vs N2O) | |
|---|---|---|---|
| CPT[1st] | 74.7 ± 16.2 | 60.9 ± 18.4 | 0.013 |
| CPT + CC | 76.1 ± 13.9 | 50.7 ± 29.0 | <0.001 |
| PLCB + CC | 0.0 ± 0.0 | 0.0 ± 0.0 | 1.000 |
Values are mean ± S.D. VAS indicates visual analog scale. Each variable was compared between conditions under room air (RA) and 40%nitrous oxide (N2O) inhalation using Tukey test (n = 15).
