Chapter 5 82 Table 5.4 Mean intraspinal nerve root sizes in patients with CIDP, MMN and controls Inflammatory neuropathy Controls Level of significance CIDP (n = 40) MMN (n = 27) MND (n = 34) Healthy control (n = 5) Ventral C5 0.66 (0.13) 0.68 (0.17) 0.65 (0.11) 0.56 (0.13) 0.001a Right 0.69 (0.13) 0.69 (0.15) 0.67 (0.13) 0.60 (0.14) 0.076 Left 0.63 (0.12) 0.67 (0.20) 0.64 (0.10) 0.53 (0.11) 0.004a C6 0.62 (0.10) 0.66 (0.14) 0.63 (0.11) 0.50 (0.12) <0.001a Right 0.61 (0.10) 0.68 (0.14) 0.62 (0.10) 0.48 (0.11) <0.001a,b Left 0.62 (0.10) 0.64 (0.13) 0.64 (0.12) 0.54 (0.15) 0.222 C7 0.67 (0.16) 0.67 (0.15) 0.61 (0.09) 0.52 (0.10) <0.001a Right 0.70 (0.19) 0.67 (0.17) 0.60 (0.08) 0.55 (0.07) <0.001c Left 0.65 (0.14) 0.67 (0.14) 0.61 (0.10) 0.48 (0.11) <0.001a Dorsal C5 0.67 (0.13) 0.67 (0.14) 0.65 (0.12) 0.58 (0.12) 0.003a Right 0.68 (0.15) 0.67 (0.15) 0.66 (0.12) 0.52 (0.08) 0.001a Left 0.67 (0.12) 0.67 (0.12) 0.65 (0.12) 0.64 (0.13) 0.504 C6 0.68 (0.14) 0.69 (0.14) 0.66 (0.13) 0.52 (0.11) <0.001a Right 0.67 (0.15) 0.70 (0.15) 0.65 (0.13) 0.52 (0.12) 0.001a Left 0.69 (0.13) 0.67 (0.13) 0.66 (0.12) 0.52 (0.11) 0.003a C7 0.69 (0.18) 0.73 (0.27) 0.73 (0.18) 0.56 (0.11) 0.001a Right 0.68 (0.20) 0.68 (0.16) 0.72 (0.16) 0.56 (0.14) 0.046d Left 0.70 (0.15) 0.77 (0.34) 0.73 (0.20) 0.55 (0.06) 0.016e Nerve root sizes are mean in millimeters with standard deviation. a Significant difference between healthy controls compared to CIDP, MMN and MND patients. b Significant difference between patients with MMN and CIDP c Significant difference between patients with CIDP and healthy controls d Significant difference between patients with MND and healthy controls e Significant difference between patients with MMN and healthy controls Abbreviations: CIDP = chronic inflammatory demyelinating polyneuropathy; MMN = multifocal motor neuropathy; MND = motor neuron disease.
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