Year Patient health records review (includes multiple hospital admissions / clinic visits)
1975 – ongoing
Wave Baseline Follow-up(s)
Age Pregnancy and birth Infancy and early life
0-3 years
Childhood
3-12 years
Adolescence
13-19 years
Infancy and early life
0-3 years
Childhood
3-12 years
Adolescence
13-19 years
Adulthood 20+ years
Speech assessment reports M M

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
XBF = Pertaining to biological father
XBM = Pertaining to biological mother
XC = Pertaining to index child
XF = Pertaining to father
XFam = Pertaining to family
XG = Pertaining to grandparent(s)
XM = Pertaining to mother
XP = Pertaining to parent(s)
XPa = Pertaining to partner
XPe = Pertaining to peers
XPr = Pertaining to primary caregiver
XSi = Pertaining to sibling(s)