Table 1 Detailed description of recorded clinical features of our ACS data

1

Sex

Male=1, Female=2

Nominal

2

Age

[-1,1]

Ratio

3

Living place (rural or urban)

Urban=1, Rural=2

Nominal

4

Body Mass Index

[-1,1]

Ratio

5

History of prior myocardial infarction

Absence=1, Presence=2

Nominal

6

History of prior angina pectoris

Absence=1, Presence=2

Nominal

7

History of congestive heart failure

Absence=1, Presence=2

Nominal

8

History of stroke

Absence=1, Presence=2

Nominal

9

History of chronic renal failure

Absence=1, Presence=2

Nominal

10

History of chronic lung disease

Absence=1, Presence=2

Nominal

11

Prioritize PCI

Absence=1, Presence=2

Nominal

12

Prior CABG

Absence=1, Presence=2

Nominal

13

Smoking status

Never=1, Former=2, Current=3

Ordinal

14

Diabetes mellitus

Non-diabetic=1, Newly diagnosed =2, Diabetic (dietary control) =3, Diabetic (oral medication) =4, Diabetic (oral MEDs + insulin) =5, Diabetic (insulin) =6

Ordinal

15

History of hypertension

Absence=1, Presence=2

Nominal

16

History of hypercholesterolemia

Absence=1, Presence=2

Nominal

17

Family history of CAD

Absence=1, Presence=2

Nominal

18

Chronic Home MEDs: Aspirin

Absence=1, Presence=2

Nominal

19

Chronic Home MEDs: Other antiplatelet

None=1, Other antiplatelet agent=2, Clopidogrel=3 , Ticlopidine=4

Ordinal

20

Chronic Home MEDs: Anticoagulants

Absence=1, Presence=2

Nominal

21

Chronic Home MEDs: Beta-blockers

Absence=1, Presence=2

Nominal

22

Chronic Home MEDs: ACE inhibitors

Absence=1, Presence=2

Nominal

23

Chronic Home MEDs: Angiotensin II RB

Absence=1, Presence=2

Nominal

24

Chronic Home MEDs: Statins

Absence=1, Presence=2

Nominal

25

Chronic Home MEDs: Non-statin lipid low. Agents

None= 1 , Other non-statin=2, Fibrates=3, Ezitimibe=4

Ordinal

26

Chronic Home MEDs: Calcium channel blockers

Absence=1, Presence=2

Nominal

27

Chronic Home MEDs: Calcium channel blockers

Absence=1, Presence=2

Nominal

28

Predominantly presenting symptom

Asymptomatic=1, Fatigue=2, Chest pain=3, Dyspnoea=4, Other symptoms=5, Syncope=6, Cardiac arrest-Aborted sudden death= 7

Ordinal

29

Heart rate

[-1,1]

Ratio

30

Systolic blood pressure

[-1,1]

Ratio

31

Troponin I elevated

Absence=-1, Presence=1

Nominal

32

CKMB mass elevated

Absence=-1, Presence=1

Nominal

33

Total Cholesterol value

[-1,1]

Ratio

34

Serum creatinine value

[-1,1]

Ratio

35

Glucose value

[-1,1]

Ratio

36

Hemoglobin value

[-1,1]

Ratio

37

Killip class

Class I=1, Class II=2, Class III=3, Class IV= 4

Ordinal

38

ECG rhythm

Sinus rhythm=1, Atrial fibrillation=2, Pacemaker=3, Other=4

Ordinal

39

ECG QRS annotation

Normal=1, RBBB=2, LBBB=3, Other=4

Ordinal

40

ECG STT changes

Normal=1, Other=2, ST depression=3, ST elevation=4

Ordinal