RESULTS
Of the 718 articles initially identified within the comprehensive
search, 17 studies utilized original CPs to identify TG patients within
electronic healthcare databases (Figure
1 ).6,8–23 Twelve of these studies were able to
validate or enhance the positive predictive value of their CP through
manual chart reviews (n=5), hierarchy of code mechanisms (n=4), key
text-strings (n=2), or self-surveys (n=1). Of these twelve studies,
three used administrative claims data and nine used electronic health
record (EHR) data. Claims data contains claims information on patient
utilization of prescription fills and medical services for the purposes
of documenting administrative and healthcare billing reimbursement,
while EHR data are medical charts in a digitized format and recorded by
providers for the purposes of patient clinical
care.24–26