Heart Disease Databases

1. Sources:

This directory contains 4 databases concerning heart disease diagnosis:

1. Cleveland Clinic Foundation
2. Hungarian Institute of Cardiology, Budapest
3. V.A. Medical Center, Long Beach, CA
4. University Hospital, Zurich, Switzerland

1. Hungarian Institute of Cardiology. Budapest: Andras Janosi, D.
2. University Hospital, Zurich, Switzerland: William Steinbrunn, M.D.
3. University Hospital, Basel, Switzerland: Matthias Pfisterer, M.D.
4. V.A. Medical Center, Long Beach and Cleveland Clinic Foundation.

• The "goal" field refers to the presence of heart disease in the patient. It is integer valued from 0 (no presence) to 4.
• Number of Instances:

Cleveland:             303
Hungarian:             294
Switzerland:          123
Long Beach VA:   200

• Number of Attributes: 14
• Missing Attribute Values: distinguished with value -9.0.
• Class Distribution:

3. Attribute Information:

-- 1. #3 (age)
-- 2. #4 (sex)
-- 3. #9 (cp)
-- 4. #10 (trestbps)
-- 5. #12 (chol)
-- 6. #16 (fbs)
-- 7. #19 (restecg)
-- 8. #32 (thalach)
-- 9. #38 (exang)
-- 10. #40 (oldpeak)
-- 11. #41 (slope)
-- 12. #44 (ca)
-- 13. #51 (thal)
-- 14. #58 (num) (the predicted attribute)

4. Database:

The Heart Database file has 303 + 294 + 123 + 200 = 920 instances. The data required for 100% accuracy is:

Class                 #Required                 #Actual

0                         1400                         411
1                         1400                         196
2                         1400                         135
3                         1400                         135
4                         1400                         43

The first 10 rows are used for the question file. The heart database file has 910 instances. Below are the first 10 instances:

Question                                              Answer

63 1 1 145 233 1 2 150 0 2.3 3 0 6     0
67 1 4 160 286 0 2 108 1 1.5 2 3 3     2
67 1 4 120 229 0 2 129 1 2.6 2 2 7     1
37 1 3 130 250 0 0 187 0 3.5 3 0 3     0
41 0 2 130 204 0 2 172 0 1.4 1 0 3     0
56 1 2 120 236 0 0 178 0 0.8 1 0 3     0
62 0 4 140 268 0 2 160 0 3.6 3 2 3     3
57 0 4 120 354 0 0 163 1 0.6 1 0 3     0
63 1 4 130 254 0 2 147 0 1.4 2 1 7     2
53 1 4 140 203 1 2 155 1 3.1 3 0 7     1

The above 10 rows are used for the question file.

Heart database file.

Question file.
 

5. Results

Click "Average/+ Real" to get the following:

=================== Beginning =====================
 
 

63 1 1 145 233 1 2 150 0 2.3 3 0 6

1.22407

67 1 4 160 286 0 2 108 1 1.5 2 3 3

2.22515

67 1 4 120 229 0 2 129 1 2.6 2 2 7

1.81427

37 1 3 130 250 0 0 187 0 3.5 3 0 3

0.0848638

41 0 2 130 204 0 2 172 0 1.4 1 0 3

0.05125

56 1 2 120 236 0 0 178 0 0.8 1 0 3

0.0515057

62 0 4 140 268 0 2 160 0 3.6 3 2 3

0.0557456

57 0 4 120 354 0 0 163 1 0.6 1 0 3

0.05125

63 1 4 130 254 0 2 147 0 1.4 2 1 7

1.37038

53 1 4 140 203 1 2 155 1 3.1 3 0 7

1.52516

=================== End ==========================

6. Analysis

Correct                 Predicted

0                1.22407 *
2                                            2.22515
1                                            1.81427 *
0                                             0.0848638
0                                             0.05125
0                                             0.0515057
3                                              0.0557456***
0                                             0.05125
2                                             1.37038*
1                                             1.52516*

where:

* miss the target by 1;
*** miss the target by 3.