the name of the variable related to health outcome (any) and
the unique contents if success, else error
Arguments
trialdata,
data containing individual level trial data
name,
name of the variable
related_words,
probable column names
multiple,
indicates true if there are multiple columns
Details
if the words related to outcome is given, the function will get the
columns and the codes used for the outcome, the difference here is that
certain outcomes can be distributed in multiple columns