LifeCourse A Melbourne Children's Research Initiative

Baby Biotics: Demographics

Relevant LifeCourse Constructs	Year	2011-2012	2011-2012	2011-2012	2011-2012	2011-2012	2011-2012	2014
	Phase	Baseline	7 days post-randomisation	14 days post-randomisation	21 days post-randomisation	28 days post-randomisation	6 month follow-up	Toddler follow-up
	Age	0-3 months	0-3 months	0-3 months	0-3 months	0-3 months	6 months	2-3 years
	N	167	167	167	167	154	132	124
Biological sex			P:SV-BS ^I
Country of birth			P:SV-CoB ^M P:SV-CoB ^F
Date of birth			P:SV-DoB ^I P:SV-DoB ^M P:SV-DoB ^F
Language spoken			P:SV-LS ^M P:SV-LS ^F
Level of educational attainment			P:SV-EA ^M P:SV-EA ^F
Marital or partnership status			P:SV-MS ^M P:SV-MS ^F
Number of siblings			P:SV-SI ^I
Place in order of siblings			P:B-B ^I
Respondent information			P:SV-RI ^P

Featured measurements

B-B: : Baby Biotics Study-devised measure
SV-BS: : Study Version - Biological Sex Indicator
SV-CoB: : Study Version - Country of Birth indicator
SV-DoB: : Study Version - Date of Birth indicator
SV-EA: : Study Version - Educational Attainment measure
SV-LS: : Study Version - Language Spoken measure
SV-MS: : Study Version - Marital Status indicator
SV-RI: : Study Version - Respondent Information measure
SV-SI: : Study Version - Siblings Information measure

Legend

B: = Biosample collected
BA: = Biosample analysis
G: = Grandparent(s) completed questionnaire
L: = Data linkage
N: = Nurse completed questionnaire
O: = Observation or direct assessment
Of: = Offspring completed questionnaire
P: = Parent/guardian completed questionnaire
Pe: = Peer completed questionnaire
R: = Records abstraction
S: = Self (primary participant) completed questionnaire
T: = Teacher completed questionnaire
X: = Other source
X ^F: = Pertains to father
X ^Fam: = Pertains to family
X ^G: = Pertains to grandparent(s)
X ^I: = Pertains to primary participant
X ^IP: = Pertains to partner
X ^M: = Pertains to mother
X ^O: = Pertains to offspring
X ^P: = Pertains to parent/guardian(s)
X ^Pe: = Pertains to peers
X ^Si: = Pertains to sibling(s)
X ^T: = Pertains to teacher(s)
X ^X: = Pertains to other reportees

Metadata presented by LifeCourse provides a crucial first step in understanding the available data across studies. It does not take the place of detailed study documentation, which should always be consulted during design and analysis.