A Clinical Decision Support System for Femoral Peripheral Arterial Disease Treatment

Table 1

Features and their normalized values.

Feature	Comment
Age (years)	Divided by 100
Sex	Female = 0, male = 1
Fontaine stage	Stage I = 0, stage II-a = 0, stage II-b = 2, stage III = 3, stage IV = 4 (see Table 4)
Lesion type (TASC classification)	Type A = 0, type B = 1, type C = 3, type D = 4 (see Table 5)
Sensitivity to anesthesia	Low = 0, medium-high = 1
Distal bed	Absence = 0, presence = 1
Embolism (percent)	Divided by 100
LDL cholesterol level	Normal = 0, near/above normal = 1, BH = 2, high = 3, very high = 4 (see Table 3)
Smoking	Absence = 0, presence = 1
Exsmoker	Absence = 0, presence = 1
Hypertension	Absence = 0, presence = 1
Blood pressure	Normal = 0, pre-HTN = 1, stage I = 2, stage II = 3 (see Table 2)
Diabetes mellitus	Absence = 0, presence = 1
Other peripheral disease history	Absence = 0, presence = 1
Family history	Absence = 0, presence = 1
Current medical treatment	Absence = 0, presence = 1
Treatment decision	Medical treatment = −1, operation = 1