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
ASD | TDC | t-/χ2 value | p value | |
|---|---|---|---|---|
N | 240 | 216 | ||
Males (%) | 197 (82.1) | 157 (72.7) | 5.8 | 0.016 |
Age years (SD) Range | 13.0 (3.5) 6.4-25.9 | 13.1 (4.1) 6.3-25.6 | − 0.43 | 0.67 |
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) | 86 | 89 | ||
Age years (SD) Range | 16.6 (9.1) 5.5–46.0 | 20.6 (9.2) 8.3–55.4 | − 2.9 | 0.004 |
IQ (SD) Range | 97.1 (23.1) 56–144 | 112.1 (19.6) 59–149 | − 4.6 | < 0.001 |