Wave 1 2 2a 3 4 5 6 7 8/11/13 9/12/14 10 15 16
Age baseline
(10-20 weeks gest)
30-32 weeks gest
(index child)
medical records data abstraction 3 months postpartum
(index child)
6 months postpartum
(index child)
9 months postpartum
(index child)
12 months postpartum
(index child)
18 months postpartum
(index child)
6 months postpartum
(2nd/3rd/4th child)
12 months postpartum
(2nd/3rd/4th child)
4 years postpartum
(index child)
10 years postpartum
(index child)
11 years postpartum
(index child)
Birth weight A P:SDV C P:SDV S P:SDV S P:SDV S P:SDV C S
Delivery mode S:SDV C S:SDV C A S:SDV C S:SDV C S:SDV S S:SDV S S:SDV S S:SDV C S
Due date S:SDV C S:SDV C A S:SDV S S:SDV S S:SDV S S:SDV S
Gestational age/prematurity A P:SDV C S
Labour A S:SDV C S:SDV S
Birth hospital (location and stay duration) S:SDV C A S:SDV C S:SDV S
Multiple births S:SDV C S:SDV C A S:SDV C S:SDV S S:SDV S S:SDV S S:SDV C S
Obstetric complications/interventions (as part of birth – tears, surgery, anaesthetics;
postpartum – health problems, medications)
A S:SDV C S:SDV S S:SDV S S:SDV S S:SDV C S
Neonatal intensive care A P:SDV C P:SDV S
Postnatal care A S:SDV S:SDV

Legend

A = Administration report abstraction
C = Index child report (reporting on others)
L = Linkage (to other databases)
M = Medical records data abstraction
O = Observation/direct assessment
N = Nurse report
P = Parent/primary caregiver report
Pe = Peer report
S = Self report
T = Teacher report
X = Undefined
X BF = Pertaining to biological father
X BM = Pertaining to biological mother
C = Pertaining to index child
X F = Pertaining to father
X Fam = Pertaining to family
X G = Pertaining to grandparent(s)
X M = Pertaining to mother
X P = Pertaining to parent(s)
X Pa = Pertaining to partner
X Pe = Pertaining to peers
X Pr = Pertaining to primary caregiver
X Si = Pertaining to sibling(s)