Table A1.
Description of features of the dataset
| SL NO. | Features | Types | Description | Range of features increasing the probability of heart disease |
|---|---|---|---|---|
| 1. | Age | Continous | Age in years | NA |
| 2. | Sex | Categorical | Male,Female | 1=male,0=female |
| 3. | Cp | Categorical | Chest pain type0: Typical angina1: Atypical angina2: Non-anginal pain3.Asymptomatic | People with cp equl to 1, 2, 3 are more likely to have heart disease than people with cp equal to 0. |
| 4. | Trestbps | Continous | Resting blood pressure in mm Hg | Concerning above 130-140 . |
| 5. | Chol | Continous | Serum cholesterol in mg/dl | serum = LDL + HDL + .2 * triglyceridesAbove 200 is matter of concern |
| 6. | Fbs | Categorical | Fasting blood sugar>120 mg/dl | 1=true,0=false>126 mg/dl signals diabetesPeople with Fbs equal to 1 increased the probability of suffering from heart disease than people with Fbs equal to 0. |
| 7. | Restecg | Categorical | Resting electrocardiographic results. People with value 1 (signals non-normal heart beat, can range from mild symptoms to severe problems) are more likely to have heart disease. | 0: Nothing to note1: Non normal heart beat can range from mild symptoms to severe problems2: Possible or definite left ventricular hypertrophyEnlarged heart's main pumping chamber |
| 8. | Thalach | Continous | Maximum heart rate achieved | More than 140 are more likely to have heart disease. |
| 9. | Exang | Categorical | Exercise induced angina | People with value 0have more probability of suffering from heart disease than people with value 1 1=yes0=no |
| 10. | Oldpeak | Continous | ST depression induced by exercise relative to rest looks at stress of heart | During exercise unhealthy heart will stress more |
| 11. | Slope | Categorical | The slope of the peak exercise ST segment | 0: Upsloping: better heart rate with excercise(uncommon)1: Flatsloping: minimal change (typical healthy heart)2: Downsloping: signs of unhealthy heart |
| 12. | Ca | Categorical | Number of major vessels (0-3) colored by flourosopy | Ca equal to 0 are more likely to have heart disease. |
| 13. | Thal | Categorical | Thalium stress result | 1,3: normal6: fixed defect: used to be defect 7: reversable defect: no proper blood movement when exercising People with thal value equal to 2 more likely to have heart disease. |
| 14. | Target | Categorical | Have heart disease or not | 1=yes, 0=no |