533,511 items of data are available, covering 501,516 participants, encoded using Data-Coding 100434
Defined-instances run from 0 to 2, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,510 participants, 501,510 items
Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 20,334 items
Instance 2 : Imaging visit (2014+)
11,667 participants, 11,667 items
ACE touchscreen question "What best describes your natural hair colour? (If your hair colour is grey, the colour before you went grey)"
If the participant activated the Help button they were shown the message:
|If you are unsure, please select the colour closest to your natural |
adult hair colour or select Do not know.
This question was dropped from the touchscreen protocol on 24/10/2016.