Age 2 – 18 years (mean 11 years)
Year 2009 – ongoing
Wave Survey 1
(completed 1 week before Clinic Visit 1)
Clinic Visit 1/Survey 2 Clinic Visit 2
(1 week after Clinic Visit 1)
Academic competence P:SDV
Childcare P:SDV 1
School demographics P:SDV
School attendance (including creche, kindergarten) P:SDV 1
School functioning P:PedsQL-4.0 2
S:PedsQL-4.0 2

Featured measurements

HopSCOTCH: Shared Care Obesity Trial in Children derived
PedsQL-4.0: Pediatric Quality of Life Inventory – 4.0 Generic Core Scales
SMU: Sizing Me Up
STU: Sizing Them Up


1 School attendance and childcare questions in COBRA are shared with HopSCOTCH
2 Age appropriate PedsQL-4.0 used – from age 3 years for parent report, from age 8 years for self report
3 Age appropriate STU used – from age 5 years for parent report


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)