Specialization of the brain for language in children with Fragile X Syndrome: a functional Near Infrared Spectroscopy study

Table 1 Demographic data by group as well as assessment data for the FXS group

Variable (n FXS, n TDC)	FXS (23)	TDC (15)	difference
Sex M: F (23, 15)	18:5	11:4	Χ² = 0.12, p = .73
Age (23, 15)	6.44 (1.90) [2.23–8.98]	7.07 (2.44) [2.18–10.71]	t(36)=-0.89, p = .38
Handedness (right: nonright) (23, 15)	16:7	12:3	Χ² = 0.51, p = .48
White: Nonwhite (23, 15)	21:2	12:3	Χ² = 1.01, p = .37
Hispanic: Nonhispanic (23, 14)	1:22	0:14	Χ² = 2.2, p = .33
Vineland ABC (23, 13)	69.9 (16.8) [43–111]	107.8 (15.2) [78–133]	t(34) = 6.7, p < .0001
Verbal DQ	49.5 (19.6) [9.5–85.7]	N/A	N/A
ADOS Calibrated Severity Scores	5.6 (2.3) [1–10]	N/A	N/A

Note One person in the TDC group had missing data for ethnicity. Two individuals in the TDC group had missing data for the Vineland. FXS = Fragile X Syndrome, TDC = Typically Developing Control, DQ = Developmental Quotient, ADOS = Autism Diagnostic Observation Schedule, ABC = Adaptive Behavior Composite. The Vineland ABC is an age-normed standard score (SS), with a mean in the population of 100 and a standard deviation of 15

ISSN: 1866-1955