Research Article
A Context-Aware MRIPPER Algorithm for Heart Disease Prediction
Table 1
Description of data used in rule set.
| Type | Range | Description |
| Chest pain | 1 to 4 | Typical angina | Atypical angina | Nonangina | Asymptomatic |
| Cholesterol | <197 | Lower | 188–250 | Medium | 217–307 | Higher | >281 | Very higher |
| BP | <134 | Lower | 124–153 | Medium | 142–172 | Higher | >154 | Very higher |
| Blood sugar | <120 | No | ≥120 | Yes |
| ECG | <0.4 | Normal | 0.4–1.8 | Abnormal | >1.8 | Hypertrophy |
| Thallium | 3 | Normal | 6 | Fixed defect | 7 | Reversible defect |
| Age | <35 | Younger | 35–45 | Middle | 40–58 | Older | >58 | Very older |
| Gender | 1 | Male | 0 | Female |
| Smoking (in years) | ≤10 | Lower | >10 | Higher |
| Drinking | 0 | No | 1 | Yes |
| Family history (diabetes, hypertension, ...) | <1 | No | ≥1 | Yes |
| Medical records (diabetes, hypertension, ...) | <1 | No | ≥1 | Yes |
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