| | No | Attribute | Description | Ranges |
| | 1 | Age | Ages of patients taken in years. | 29 to 27 | | 2 | Sex | 0 for female, 1 for male. | 0, 1 | | 3 | Chest pain type | There are four types—1 for angina, 2 for atypical angina, 3 for nonangina pain, and 4 for asymptomatic angina. | 1, 2, 3, 4 | | 4 | Resting blood pressure | Blood pressure of the patient when at rest in mm Hg. | 94 to 200 | | 5 | Serum cholesterol | The amount of cholesterol in the blood in mg/dL. | 126 to 564 | | 6 | Fasting blood sugar | Amount of sugar present at fasting. 0 for false—fasting blood sugar is not above 120 mg/dL; 1 for true—fasting blood sugar is above 120 mg/dL. | 0, 1 | | 7 | Resting electrocardiograph | Values produced by electrocardiography at rest. 0 is normal; 1 is having ST-T wave abnormality; 2 for showing probable or definite left ventricular hypertrophy. | 0, 1, 2 | | 8 | Maximum heart rate | Maximum heart rate of patient. | 71 to 202 | | 9 | Exercise-induced angina | Whether or not the patient gets angina when exercise is performed. They are 0 for no and 1 for yes. | 0, 1 | | 10 | ST depression | Finding on an electrocardiogram wherein the trace of the ST segment is abnormally low below the baseline. Values contain ST depression induced by exercise relative to rest. The abbreviation ST in medical terms means sinus tachycardia. | 1 to 3 | | 11 | Slope | The slope of the ST segment for peak exercise by the patient. 1 for upsloping, 2 for flat, and 3 for downsloping. | 1, 2, 3 | | 12 | Number of vessels | Number of vessels colored by fluoroscopy. | 0 to 3 | | 13 | Thallium stress test result | How well blood flows to the heart while at rest or during exercise. 3 is normal, 6 is a fixed defect, and 7 is a reversible defect. | 3, 6, 7 | | 14 | Diagnosis | Predicted attribute that contains values showing no presence or presence of heart disease to varying degrees. 0 for no presence, 1 for least likelihood, 2 for moderate likelihood, 3 for a high likelihood, and 4 for very high likelihood. Values 1 through 4 are compressed to a single value, 1, representing the presence of heart disease. | 0 or 1 |
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