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Table 3 Longitudinal changes of scalp-to-cortex distance of left M1 and DLPFC

From: Dynamic changes of region-specific cortical features and scalp-to-cortex distance: implications for transcranial current stimulation modeling

Geometric measures NA adults (n = 32) MCI converters (n = 22) t value p value
Left M1
 SCD (mm)
  Baseline 16.48 ± 3.01 16.14 ± 2.93 0.403 0.689
  1st year FU 15.99 ± 2.66 15.42 ± 2.11 0.795 0.431
  3rd year FU 16.16 ± 2.52 16.28 ± 3.21 − 0.144 0.886
 Left DLPFC
  SCD (mm)
   Baseline 14.97 ± 2.98 14.75 ± 2.15 0.557 0.581
   1st year FU 15.06 ± 2.62 14.86 ± 2.37 0.281 0.781
   3rd year FU 15.15 ± 2.63 15.74 ± 2.03 − 1.855 0.083