Skip to main content

Table 2 Characteristics of the Early Markers for Autism study populationa

From: Increased midgestational IFN-γ, IL-4 and IL-5 in women bearing a child with autism: A case-control study

Characteristics ASD (N= 84) DD (N= 49) GP (N= 159) ASD vs. GP ASD vs. DD DD vs. GP
  n % n % n % P value P value P value
Gender        0.91 0.0003 <0.0001
   Male 73 86.9 29 59.2 139 87.4    
   Female 11 13.1 20 40.8 20 12.6    
Plurality        0.42 1.0 0.34
   Singleton 81 96.4 47 95.9 156 98.1    
   Multiple 3 3.6 2 4.1 3 1.9    
Parity         0.05 0.24
   Primiparous 42 50.0 16 32.7 67 42.1 0.24   
   Multiparous 42 50.0 33 67.3 92 57.9    
Mother's race        0.06 0.63 0.62
   Caucasian 57 67.9 37 75.5 126 79.2    
   Asian 19 22.6 9 18.4 28 17.6    
   Other 6 7.1 3 6.1 5 3.1    
   Missing 2 2.4 0 0 0 0    
Mother's ethnicity        0.0007 0.0001 0.17
   Hispanic 20 23.8 28 57.1 73 45.9    
   Non-Hispanic 64 76.2 21 42.9 86 54.1    
Mother's birth country        <0.0001 <0.0001 0.33
   United States 45 53.6 16 32.7 71 44.7    
   Mexico 9 10.7 22 44.9 58 36.5    
   Other 30 35.7 11 22.4 30 18.9    
Mean maternal age, years (±SD) 30.9 (5.2) 28.3 (5.2) 28.2 (5.5) 0.0003 0.006 0.87
Mean paternal age, years (±SD) 34.0 (6.3) 33.0 (7.9) 31.0 (6.5) 0.001 0.41 0.14
Mean last recorded maternal weight prior to blood draw, lb (±SD) 145.1(26.7) 149.1(38.7) 146.9 (33.8) 0.65 0.53 0.56
  1. aASD: autism spectrum disorder; DD: developmental delay; GP: general population.