Year 2011-2012 2011-2012 2011-2012 2013-2014 2014-2015
Wave 1 2 3 4a 4 5
Age 19 weeks gest 26 weeks gest 36 weeks gest birth 12 months 2 years
Buccal Mother: 1491 Child: 738 *
Cord blood Child: 210 *
Placenta Sample: 248 *
Newborn screening (Guthrie) card consent to use, use not planned at present
Consent: 1375

Notes

* A DNA biobank was created from samples of maternal and infant buccal cells, placental biopsies and cord blood mononuclear cells collected at birth, to allow for the examination of epigenetic states at birth as well as genetic factors in the mother and child

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)