Trial phase Antenatal screening Antenatal Enrolment and Baseline Randomisation 6 w old follow-up 6 m old follow-up 1 y old follow-up 18 m old follow-up 2 y old follow-up End Phase 1 2.5 y old follow-up 3 y old follow-up 3.5 y old follow-up 4 y old follow-up 4.5 y old follow-up 5 y old follow-up 5.5 y old follow-up First year of school follow-up (5-6 y old) 6 y old follow-up *COVID-19 Supplement (6-7 y old) End Phase 2
Year 2013-2014 2013-2014 2013-2014 2013-2014 2013-2015 2014-2015 2014-2016 2015-2016 2015-2017 2016-2017 2016-2018 2017-2018 2017-2019 2018-2019 2018-2020 2019-2021 2019-2020 2020
Housing tenure S:SDV
S:SHS-A 1
S:SDV
2
P:SDV P:SDV S:SDV
S:SHS-A 1
S:SDV
2
S:SDV
S:SHS-A 1 3
S:SDV 2 3
S:SDV
S:SHS-A 1
S:SDV
2
P:SDV S:SDV
S:SHS-A 1
S:SDV
2
P:SDV S:SDV
S:SHS-A 1
S:SDV
2
P:SDV S:SDV
S:SHS-A 1
S:SDV
2
P:SDV S:SDV
S:SHS-A 1
S:SDV
2
Characteristics of home environment S:SHS-A 4
O:LSAC
O:SDV
P:SHS-A 4
P:HOME
O:HOME
P:SDV 5
O 5
P:SHS-A 3 4
P:SDV 3 5
P:SHS-A 4
P:HOME
O:HOME
P:SDV 5
O 5
S:SHS-A 4 S:SHS-A 4 S:SHS-A 4 S:SHS-A 4
Household composition S:SDV S:SDV  6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6 P:SDV 6
Household dynamics S:CHAOS P:HOME P:HOME
Domestic abuse S:FPS 7 P:HOME
O:HOME
S:FPS 7
S:FPS 3 7 P:HOME
O:HOME
S:FPS 7
S:FPS 7
S:CAS 8
S:FPS 7
S:CAS 8
S:FPS 7
S:CAS 8
S:FPS 7
S:CAS 8
Contact with child protection services P:SDV P:SDV P:SDV P:SDV P:SDV
Home learning environment P:LR 9
P:BPCIS 10
P:HOME
O:HOME
P:LR 9
P:BPCIS 10
P:HOME
O:HOME
P:LR 9
P:BPCIS 10
P:LR 9
P:BPCIS 10
P:LR 9
P:BPCIS 10
P:LSAC 11
P:MCS 12
T:AvEDI 13
P:LSAC 11
P:MCS 12
Social support (including emotional,
instrumental, informational, financial)
S:SDV S:SPS-A
S:LSAC
S:SPS-A
S:LSAC
P:HOME
S:SPS-A 3
S:LSAC 3
S:SPS-A
S:LSAC
P:HOME
S:SPS-A
S:LSAC
S:SPS-A
S:LSAC
S:SPS-A
S:LSAC
S:LSAC S:SPS-A
S:LSAC
Locality (postcode) S:SDV S:SDV P:SDV P:SDV P:SDV P:SDV P:SDV P:SDV P:SDV P:SDV P:SDV P:SDV P:SDV P:SDV P:SDV

Featured measurements

AvEDI: Australian version of the Early Development Instrument
BPCIS: Brigance Parent-Child Interactions Scale
CAS: Composite Abuse Scale
CHAOS: Confusion, Hubbub, and Order Scale
ELVS: Early Language in Victoria Study derived
FPS: Family Psychosocial Screening derived
HOME: Home Observation for the Measurement of the Environment
KHSC: Kidsafe Home Safety Checklist
LR: Let's Read derived
LSAC: Longitudinal Study of Australian Children derived
MCS: Millenium Cohort Study derived
RHCS: Raising Healthy Children Survey
SHS-A: Social History Screen - Adapted
SPS-A Social Provisions Scale - Adapted

Notes

1 Single item about threat of eviction or losing home Social History Screen was used
2 Number of times moved in the past year
3 Completed at 18 months if not completed at 1 year visit
4 Single item about any housing issues. E.g. overcrowding, roaches, rodents, utilities, mould, lead Social History Screen was used
5 16 safety items based on the RCH Safety Centre and KidSafe checklists. E.g. presence of stairs, safety barriers, heating, location of medications and cleaning products
6 Including ages of children living in household, by age bracket: 0-4, 5-12 and 13-18 years
7 8 items from the Family Psychosocial Screening questionnaire were used
8 The Emotional Abuse Subscale from the Composite Abuse scale was used
9 3 items about reading to the child, based on the Let’s Read study
10 An adapted 10-item version of the BPCIS as previously used in ELVS was used
11 Items from the Home Activies Index from LSAC, measuring the home learning environment and shared parent-child activities, were used
12 Single item about helping the child to read was adapted from the MCS
13 2 items relating to parental engagement with learning from the AvEDI (as used in the 2018 Australian Early Development Census cycle) were used

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)