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Table 1 Demographic and clinical information for the primary and replication samples

From: Evidence against the “normalization” prediction of the early brain overgrowth hypothesis of autism

 ASDTDCt-/χ2 valuep value
N240216  
Males (%)197 (82.1)157 (72.7)5.80.016
Age years (SD)
Range
13.0 (3.5)
6.4-25.9
13.1 (4.1)
6.3-25.6
− 0.430.67
IQ (SD)
Range
100.9 (20.6)
47–158
113.0 (16.0)
67–155
− 7.0< 0.001
SRS-II (SD)
Range
N
73.3 (9.0)
47–89
210
 
ADOS CSS (SD)
Range
N
6.9 (2.2)
1–10
238
 
SCQ (SD)
Range
N
20.9 (6.1)
0–36
233
 
Yale    
N (all male)8689  
Age years (SD)
Range
16.6 (9.1)
5.5–46.0
20.6 (9.2)
8.3–55.4
− 2.90.004
IQ (SD)
Range
97.1 (23.1)
56–144
112.1 (19.6)
59–149
− 4.6< 0.001