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Table 9.3
Mapping between
attributes and concepts
features
Attributes Concepts
VisitLink Patient Identifier
DaysToEvent Temporal visit ordering
DXCCSn
n
th Diagnosis, flexible attributes
PRCCSn
n
th Procedure, meta-actions
Race, Age Range, Sex, … Stable attributes
DIED
Decision attribute
to the hospital and the procedure day. This field is anonymized in order to hide the
patients' identity.
Furthermore, the
Core
table also contains a feature called
DIED
, that informs us
on whether the patient died or survived in the hospital for a particular discharge. In
addition, there are several demographic data that are reported in this table as well,
such as: Race, Age Range, Sex, living area, …The following Table
9.3
maps the
attributes from the
Core
table to the concepts and notations used in this chapter.
9.7.2 Meta-action Extraction
We extracted meta-actions action terms from the Florida SID dataset, and computed
their likelihood and term confidence using the method described in Sect.
9.4.2
.In
these experiments, we extracted action terms for 231 procedures, considered here as
meta-actions; however, for the sake of this chapter, we report the results for five meta-
actions described in Table
9.4
with their CCS procedure codes. We built an influence
matrix represented by Table
9.6
that describes our findings in terms of meta-actions'
action terms. Table
9.6
reports few examples of action terms of size 1-4 extracted
for each meta-action; however, we extracted action terms with more than 4 atomic
terms and we may extract action terms of size up to the number of features. We also
included the description of the CCS diagnoses codes for some of the most significant
action terms' features in Table
9.5
.
Table 9.4
Mapping between CCS single level procedure codes and their description [
3
]
PRCCS1
Description
43
Heart valve procedures
44
Coronary artery bypass graft (CABG)
45
Percutaneous transluminal coronary angioplasty (PTCA)
47
Operations on lymphatic system
48
Insertion; revision, replacement; removal of cardiac pacemaker or cardioverter/
defibrillator
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