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Comparison of pain intensity during spinal injection between the EMLA cream group and the vapocoolant spray group.
| NPRSa | EMLA cream (N=47) | Vapocoolant spray (N=47) | p value |
|---|---|---|---|
| NPRS 0 | 30 | 25 | 1.000b |
| NPRS 1 | 13 | 17 | |
| NPRS 2 | 3 | 4 | |
| NPRS 3 | 1 | 0 | |
| NPRS 4 | 0 | 1 |
aNPRS, numeric pain rating scale; bMann–Whitney U test, significant if p value < 0.05.
