As
a secondary analysis, the primary researchers have
re-used
their own self-collected data to investigate a new
question
that was not explored in-depth in the primary
research.
This is a popular approach to secondary analysis
in
international health care literature and is regarded as
supplementary
analysis (Heaton, 2008). Several of the
ethical
problems that have been identified in secondary analysis
of qualitative literature are overcome by using this
method