Study sample
aggressiveness, hyperactivity/
Among the 243 children included, aged 10.3 years (± 3.9), 81.9% (n = 199) were males. At inclusion of participants in the ELENA cohort, their mean ADOS-2 CSS score was 6.8 (± 2.0), their mean IQ was 77.1 (± 28.0) and their SRS-2 T-score was 94.9 (± 19.0). Their mean VABS-II scores were 72.6 (± 15.5) for communication, 75.6 (± 12.8) for daily living skills and 70.9 (± 10.6) for socialisation. Their mean ABC scores were 33.1 (± 21.0) for irritability/ aggressiveness, 26.6 (± 18.4) for lethargy/ social withdrawal, 29.6 (± 22.9) for stereotyped behaviours/ self-harm and 44.0 (± 25.0) for hyperactivity/ lack of cooperation. On average, children included in the analyses had higher IQ, VABS-II daily living skills and communication scores than in the whole ELENA cohort (see Supplementary Table 