Skip to main content

Advertisement

Table 1 Sample characteristics at study entry by group

From: Behavioral, cognitive, and adaptive development in infants with autism spectrum disorder in the first 2 years of life

  HR-ASD-High HR-ASD-Mod HR-Neg LR-Neg p a
(n = 31) (n = 18) (n = 161) (n = 98) (4-Group)
  n % n % n % n %  
Gender <0.01
 Male 26 83.9 15 83.3 88 54.7 55 56.1  
 Female 5 16.1 3 16.7 73 45.3 43 43.9  
Ethnicity 0.97
 White 27 87.1 15 83.3 140 87.0 84 85.7  
 Non-white 4 12.9 3 16.7 21 13.0 14 14.3  
Family income 0.83
 Not answered 0 0.0 1 5.6 6 3.7 4 4.1  
 <$75,000/year 12 38.7 8 44.4 65 40.4 41 41.8  
 > = $75,000/year 19 61.3 9 50.0 90 55.9 53 54.1  
Maternal education 0.02
 No college 12 38.7 8 44.4 48 29.8 19 19.4  
 College degree 10 32.3 5 27.8 75 46.6 37 37.8  
 Graduate degree 9 29.0 5 27.8 38 23.6 42 42.9  
  Mean Std Mean Std Mean Std Mean Std  
Child gestational age (week) 38.6 1.42 39.1 1.17 39.0 1.24 39.2 1.42 0.41
Age at visits (month)
 6 month visit 6.8 0.82 6.6 0.64 6.8 0.76 6.7 0.71 0.67
 12 month visit 13.1 0.88 12.8 0.68 12.9 0.75 12.9 0.76 0.59
 24 month visit 24.5 0.80 25.1 2.19 25.1 3.08 25.5 3.1 0.30
ADOS total score at 24 months 17.4 3.53 11.0 2.00 2.6 2.06 2.33 2.0 <0.0001
  1. aFisher’s exact test for categorical variables (gender, family income, maternal education) and ANOVA for continuous variables (gestational age and age at visits). All tests are two-sided at a significance level of .05