SHARE_RECALL_DATE

The variable RECALL_DATE is based on the SHARE variable CONTACT_DATE.

This is the date when the recall test (interview date) was performed.

HAPIEE_RECALL_DATE

Date of cognitive assessment can be created from the following HAPIEE baseline variables:  moncog (month of cognitive assessment),  daycog  (day of cognitive assessment), and yrcog (year of cognitive assessment). The date may correspond to the CHANCES variable for date of contact, CONTACT_DATE. 

Stata code 

recode moncog daycog yrcog (99=.)
recode yrcog 2=2002 3=2003 4=2004 5=2005 6=2006 7=2007 8=2008 
gen recall_date = mdy(moncog, daycog, yrcog)
format recall_date %td