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The table shows the pain intensity according to VAS and the correlation confidence between the intensity of headache and neck-, shoulder-, arm-pain after the nerve block
| Headache 28 (29) ± 32 (0–100) | |
|---|---|
| Neck pain 33 (25) ± 29 (0–100) | 0.645*** |
| Shoulder pain 32 (32) ± 28 (0–100) | 0.530*** |
| Arm pain 29 (20) ± 27 ( 0–95) | 0.438*** |
Mean (median) SD and range are given
***P < 0.0001
