* Here is an html file containing [[https://ibg.colorado.edu/~lessem/ukb6395.html|documentation of the variables]] in our UK Biobank dataset (ukb6395)  * The second set of UK Biobank data (ukb7241) [[https://ibg.colorado.edu/~lessem/ukb7241.html|is documented here]]
  * Flowcharts showing the routing logic for the UK Biobank alcohol and tobacco questions. Code here: https://github.com/dbrazel/ukbiobank-flowcharts
{{file_alcohol_phenotypes.pdf}}

{{file_smoking_phenotypes.pdf}}

Instance 0 (Initial Assessment): 2006-2010 

Instance 1 (First Repeat Assessment): 2012-2013 

Instance 2 (Imaging Visit): 2014-