Table 3 Comparisons of number of cortical regions with aberrant gyrification between carriers and controls.

From: Cortical gyrification and its relationships with molecular measures and cognition in children with the FMR1 premutation

 

Controls (N = 28)

Carriers (N = 33)

Test statistics

Mean (SD)

Range

Mean (SD)

Range

Hypergyrification (%)

0.1 (0.3)

0–1.5

1.2 (2.0)

0–8.8

t =  − 3.62, df = 40.6, p = 0.0008

Hypogyrification (%)

0.2 (0.5)

0–1.5

3.6 (6.3)

0–25.0

t =  − 4.19, df = 48.4, p = 0.0001

Total aberrant (%)

0.2 (0.5)

0–1.5

4.7 (6.1)

0–25.0

t =  − 7.12, df = 56.7, p < 0.0001

  1. The t-tests were performed on log transformed data after adding 0.0001 to accommodate zero percentage of regions with aberrant LGI in some participants.
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