Data
150,734 items of data are available, covering 140,870 participants, encoded using Data-Coding
100349.
Defined-instances run from 0 to 3, labelled using Instancing
2.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
130,045 participants, 130,045 items
Instance 1 : First repeat assessment visit (2012-13)
4,116 participants, 4,116 items
Instance 2 : Imaging visit (2014+)
15,227 participants, 15,227 items
Instance 3 : First repeat imaging visit (2019+)
1,346 participants, 1,346 items
Notes
ACE touchscreen question "Have you had back pains for more than 3 months?"
Field 3571 was collected from participants who indicated that in the last month they experienced back pain that interfered with their usual activities, as defined by their answers to Field 6159