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)
Sleep habits P:SDV *
S:SDV *
Sleep problems P:SDV *
S:SDV *

Featured measurements

LSAC: Longitudinal Study of Australian Children derived
SDV: Study Devised Variable

Notes

* Sleep questions in COBRA are shared with LSAC

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)