VAHCS: Speech and language
| Relevant LifeCourse Constructs | Year | 1992 | 1993 | 1993 | 1994 | 1994 | 1995 | 1998-1999 | 2001-2003 | 2006-2008 | 2012-2014 | 2019-2021 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wave | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |
| Age | 14.9 | 15.5 | 15.9 | 16.4 | 16.8 | 17.4 | 20.7 | 24.1 | 29.1 | 35.1 | 42.6 | |
| N | 898 | 1727 | 1697 | 1628 | 1575 | 1530 | 1601 | 1520 | 1501 | 1443 | 1428 | |
| Speech | S:AHS-Pro I | |||||||||||
Featured measurements
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
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= Pertains to father - X Fam
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= Pertains to family - X G
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= Pertains to grandparent(s) - X I
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= Pertains to primary participant - X IP
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= Pertains to partner - X M
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= Pertains to mother - X O
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= Pertains to offspring - X P
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= Pertains to parent/guardian(s) - X Pe
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= Pertains to peers - X Si
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= Pertains to sibling(s) - X T
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= Pertains to teacher(s) - X X
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= 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.