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Table 2 Comparison of dermatomal vs. non-dermatomal patterns of radiculopathy at each level of the cervical and lumbar spine.

From: Pain patterns and descriptions in patients with radicular pain: Does the pain necessarily follow a specific dermatome?

  Dermatomal Non-dermatomal
Area/nerve root n Percent n Percent
Cervical 20 30.3 46 69.7
Lumbar 37 35.9 66 64.1
Chi-square p = 0.4510
Cervical levels     
C4 3 60.0 2 40.0
C5 3 25.0 9 75.0
C6 14 35.0 26 65.0
C7 12 32.4 25 67.6
Chi-square p = 0.5731
Lumbar levels     
L2 2 40.0 3 60.0
L3 4 30.8 9 69.2
L4 8 28.6 20 71.4
L5 8 16.3 41 83.7
S1 24 64.9 13 35.1
Chi-square p < 0.0001