Table 1:

Cohort neurodevelopmental outcomes

Variable	Test n (total cohort = 51)
Cognitive
FSIQ composite score a, mean ± SD	26	82.6 ± 24.2
FSIQ composite score a <70, n (%)	26	6 (23)
Bayley-III cognitive composite, mean ± SD	28	91.3 ± 24.9
Bayley-III cognitive composite <70, n (%)	28	3 (11)
Behavioral
CBCL total problems T score b ≥64, n (%)	33	8 (24)
CBCL internalizing T score b ≥64, n (%)	33	11 (22)
CBCL externalizing T score b ≥64, n (%)	33	8 (24)
Major behavioral diagnosis c, n (%)	51	11 (22)
Motor
Bayley-III motor composite, mean ± SD	29	89.8 ± 24.3
Bayley-III motor composite <70, n (%)	29	4 (14)
Cerebral palsy, n (%)	51	10 (20)
Language
Bayley-III language composite, mean ± SD	25	92 ± 14.9
Bayley-III language composite <70, n (%)	25	2 (8)
Major language impairment	51	8 (16)
Other impairments
Epilepsy, n (%)	51	9 (18)
Major hearing impairment, n (%)	51	2 (4)
Major vision impairment, n (%)	51	10 (20)
NDI d, n (%)	51	19 (37)

^aFull Scale IQ assessed by WPPSI-IV or WISC-V depending on child’s age, score <70 corresponds to more than 2 SD below the mean

^bCBCL total problems, internalizing and externalizing T scores ≥64 considered clinically abnormal (above 90^th percentile)

^cMajor behavioral diagnosis defined as ADHD, ASD, PDD, mood disorders, other

^dNDI defined as any of the following: Bayley-III, WPPSI-IV or WISC-V score >2 SD below the mean (i.e. score <70 on any domain), major hearing impairment, major vision impairment, major language impairment or a diagnosis of cerebral palsy

ADHD, attention-deficit hyperactivity disorder; ASD, autism spectrum disorder; Bayley-III, Bayley Scales of Infant and Toddler Development, Third Edition; CBCL, Child Behavior Checklist; FSIQ, full-scale IQ; NDI, neurodevelopmental impairment; PDD, pervasive developmental disorder; SD, standard deviation; WISC-V, Wechsler Intelligence Scale for Children, Fifth Edition; WPPSI-IV, Wechsler Preschool and Primary Scale of Intelligence, Fourth Edition