Table 5.

Child variables and biological specimens collected in questionnaires and clinic visits

Variables	3 months	6 months	1 year	2 years	3 years	5 years	8 years
Health and development		X	X	X	X	X	X
Occupation	X	X	X	X	X	X
Childcare	X	X	X	X	X	X
Vaccines						X
Child food and liquid intake	X	X	X	X	X	X
Children’s eating and drinking behaviours						X	X
Children’s activities						X	X
Children’s injuries						X
Community							X
Children’s education							X
General infant behaviours
Infant Behavior Questionnaire (IBQ)	X	X	X	X
Scales of Independent Behaviors (SIB-R)	X	X	X	X	X	X
Fussing and crying	X	X	X	X
Sleeping		X	X	X	X	X	X
Early Childhood Behavior Questionnaire (ECBQ)				X
Children’s Behavior Questionnaire (CBQ)					X
Child Behaviour Checklist Ages 1.5–5 (CBCL)				X	X
Behaviour Rating Inventory of Executive Function—Preschool (BRIEF-P)				X	X
Ages and Stages Questionnaire—Third Edition (ASQ-3)						X
Children’s Communication Checklist—Second Edition (CCC-Q)						X
Behaviour Assessment System for Children—Second Edition (BASC-2)						X	X
Media use						X	X
Quantitative Checklist for Autism in Toddlers				X	X
Temper Tantrum Scale—past 2 weeks				X	X
Temper Tantrum Scale—past 6 months				X	X
Parenting						X	X
Biological specimens
Buccal cells	X
Venous blood	X