Step 1: The variable hlf0169_v1 is recoded (1=1) for the years 2000,, 2002,, 2004, and 2006 and subsequently integrated into the harmonized variable hlf0169_h. Step 2: The variable hlf0169_v2 is recoded (1=1) for the years 2008, and 2010 and subsequently integrated into the harmonized variable hlf0169_h, if hlf0169_v3 is less than or equal to -2. Step 3: The variable hlf0169_v3 is recoded (1=1) for the years 2008, and 2010 and subsequently integrated into the harmonized variable hlf0169_h, if hlf0169_v2 is less than or equal to -2 or (hlf0169_v2 is 1 and hlf0169_v3 is 1). Step 4: The variable hlf0169_v4 is recoded (1=1) for the year 2011 and subsequently integrated into the harmonized variable hlf0169_h, if hlf0169_v5 is less than or equal to -2. Step 5: The variable hlf0169_v5 is recoded (1=1) for the year 2011 and subsequently integrated into the harmonized variable hlf0169_h, if hlf0169_v4 is less than or equal to -2 or (hlf0169_v4 is 1 and hlf0169_v5 is 1). Step 6: The variable hlf0169_v6 is recoded (1=1) for the years 2012 to 2013 and subsequently integrated into the harmonized variable hlf0169_h, if hlf0169_v7 is less than or equal to -2. Step 7: The variable hlf0169_v7 is recoded (1=1) for the years 2012 to 2013 and subsequently integrated into the harmonized variable hlf0169_h, if hlf0169_v6 is less than or equal to -2 or (hlf0169_v6 is 1 and hlf0169_v7 is 1).