Year ≥ 2008
Time Enrolment
Age Pregnancy and birth Early life 0-3 years Childhood 3-12 years Teenage 13-19 years
Dexterity/handedness P:SDVC
Height P:SDVC
N:SDVC
Birth length P:SDVC
Weight P:SDVC
N:SDVC
Birth weight P:SDVC
Pregnancy weight change P:SDVM
Birth head circumference P:SDVC
S – self report
P – parent report
C – child report
T – teacher report
N – nurse report
O – observation
XM: Mother
XF/P: Father/partner
XC: Child
XS: Sibling
XG: GrandparentSDV: Study Devised Variable