Table 1.

Sample characteristics

	ASD (n=20)	HR-noASD (n=59)	LR (n=89)
Gender, male	70%	55.9%	56.2%
Ethnicity, Caucasian	80%	86.4%	88.8%
	M (SD)	M (SD)	M (SD)
Parent education	5.61 (0.98)	6.01 (0.79)	6.18 (0.72)
Age at 22 mo assessment	22.82 (0.68)	22.70 (0.73)	22.78 (0.71)
Age at 28 mo assessment	28.69 (0.63)	28.68 (0.51)	28.52 (0.42)
Age at 34 mo assessment	34.88 (0.88)	34.69 (0.84)	34.62 (0.61)
Mullen Verbal Score	35.78 (12.95)	51.09 (8.32)	53.56 (8.50)
Mullen Non-Verbal Score	43. 68 (9.08)	49.68 (7.45)	53.57 (8.87)
ADOS severity score	5.79 (1.55)	1.53 (0.90)	1.42 (0.85)