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Measurements of the spinal cord*
PatientsControls†P Value
Mean ± SD95% CLMean ± SD
Anteroposterior diameter (mm)
    C25.6 ± 1.05.0–6.29.5 ± 0.6<.001
    T64.4 ± 0.74.0–4.97.8 ± 0.7<.001
    T114.8 ± 0.94.3–5.38.3 ± 1.1<.001
Coronal diameter (mm)
    C210.2 ± 0.89.7–10.713.3 ± 1.1<.001
    T66.8 ± 0.66.5–7.210.2 ± 0.7<.001
    T118.1 ± 0.97.5–8.710.6 ± 1.5<.001
Level cross-sectional area (mm2)
    C246.5 ± 8.440.7–52.393.9 ± 11.4<.001
    T624.4 ± 4.921.2–27.759.9 ± 7.4<.001
    T1131.7 ± 7.126.5–37.078.4 ± 21.1<.001
  • Note:—CL indicates confidence limit.
  • * Student 2-tailed t test was used for comparisons.
  • † Measurements of the controls from Krabbe et al.10