Year 1992 1992 1993 1994 1994 1995 1998 2001-2003 2006-2008 2012-2014
Wave 1 2 3 4 5 6 7 8 9 10
Age 14.9 years 15.5 years 15.9 years 16.4 years 16.8 years 17.4 years 20.7 years 24.1 years 29.1 years 35 years
Birth order S S S S
Country of birth – self, parents S S S S S S
Country of birth – grandparents S S
Education level – parents S S S S S S S S
Employment – self S S S S S S S
Employment – parents S S S
Income/finance S S S
Languages spoken S S S S
Living arrangements S S S S S S S S
Marital status – parents S S S S S S S S S S
Religion S S S S S S
Sex S S S S S S S S S S
Siblings S S S S
Wave 1 1 1 2 3
Age 34 week gestation
Maternal report
34 week gestation
Paternal report
34 weeks gestation
Non-cohort parent catch-up report
8 weeks 1 year
Birth order S M
Parental education level S N
Parental employment S N
Ethnicity S N
Income/finance S M
Parental living arrangements S M F P M F P M F
Parental marital status S M F P M F P M F
Sex P C P C
Siblings P C P C


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)