Expressive language development in adolescents with Down syndrome and fragile X syndrome: change over time and the role of family-related factors

Table 1 Characteristics of biological mothers and families of individuals with DS or FXS at baseline

Variables	Fragile X syndrome (n = 37)	Down syndrome (n = 20)	p value
Maternal education %			0.14
- Graduated high school - Graduated college - Advanced degree	50.0 30.6 19.4	40.0 55.0 5.0
Paternal education, %			0.59
- Graduated high school - Graduated college - Advanced degree	51.6 25.8 22.6	60.0 30.0 10.0
Family Income	$80,000 ($37,000)	$88,000 ($32,000)	0.44
Maternal current CA	41.6 (6.0)	44.2 (6.2)	0.12
Maternal IQ	107.2 (12.1)	110.0 (9.6)	0.38
Maternal GSI (SCL90-R)	54.4 (11.0)	48.2 (9.3)	0.04
Positive Affect Index	25.0 (3.5)	25.3 (2.3)	0.72

Living with both parents is missing for one FXS participant; maternal education is missing for one FXS participant, paternal education is missing for six FXS; Family Income is based on interval ratings as stated in the methods section. Family income is missing for one DS participant and two FXS participants; Maternal GSI missing for one DS participant and two FXS participants; Positive Affect Index is missing for one DS participant
IQ intellectual quotient, GSI general severity index, SCL90-R Symptom Checklist-90 Revised
Values represent means and standard deviations (in brackets) unless otherwise indicated. Variables followed with a % represent percentages

ISSN: 1866-1955