Heart Disease Statlog

By shrijeetverma13 · February 4, 2026

Data source:

The overall heart disease prevalence rate in this patient population is 44.4%. Out of 270 total patients analyzed, 120 have heart disease while 150 do not.

Heart disease prevalence differs significantly between male and female patients in this dataset. Male patients show a heart disease rate of 54.6% (100 out of 183 patients), while female patients have a considerably lower rate of 23.0% (20 out of 87 patients). This represents a 31.6 percentage point difference, with males being more than twice as likely to have heart disease compared to females in this population.

Exercise-induced angina significantly increases the likelihood of heart disease. People with exercise-induced angina have a 74.2% heart disease rate compared to just 29.8% for those without it. This means having exercise-induced angina makes you 2.49 times more likely to have heart disease—an absolute increase of 44.3 percentage points.

The analysis reveals a clear pattern: heart disease rates increase significantly with age. A visualization and detailed breakdown show which age groups have the highest disease prevalence and should be prioritized for screening programs.

The analysis reveals that Asymptomatic chest pain (type 3) is most strongly associated with heart disease, showing the highest disease rate among all chest pain types. A visualization and detailed breakdown by chest pain type have been generated to show these associations.

The analysis reveals a clear relationship between the number of major vessels colored and heart disease diagnosis. Two visualizations were created showing patient distribution and disease rates across different vessel counts.

The analysis reveals a weak positive correlation (0.118) between cholesterol levels and heart disease outcomes. When examining different cholesterol ranges, the data shows varying heart disease rates across four categories: Normal (<200 mg/dL), Borderline (200-240 mg/dL), High (240-300 mg/dL), and Very High ( 300 mg/dL).

The analysis reveals that oldpeak (ST depression) values show an interesting pattern in predicting heart disease. Contrary to what might be expected, lower oldpeak values are actually associated with higher disease rates. Patients with heart disease have an average oldpeak of 1.58, compared to 0.62 for those without disease.

The analysis examined heart disease risk across different resting blood pressure levels, from normal (<120 mmHg) to crisis levels (160+ mmHg). A visualization was created showing the disease rate for each blood pressure category, with color coding from green (normal) to dark red (crisis) to highlight risk levels.

Maximum heart rate levels show a clear distinction between healthy patients and those with heart disease. Patients with heart disease achieve significantly higher maximum heart rates during testing, averaging 158.3 bpm compared to 138.9 bpm for healthy patients. The visualizations show two box plots and overlapping histograms that illustrate this 19.5 bpm difference between the groups.

Reversible Defect (thal=3) shows the strongest association with heart disease, with a 76% disease rate among patients with this thalassemia type. This is significantly higher than the other thalassemia categories.

Among heart disease patients in the dataset, 5 individuals present with asymptomatic chest pain (cp=0). This represents a small minority at 4.2% of the total 120 heart disease patients.

The analysis reveals clear differences in heart disease rates across different resting ECG results. A grouped bar chart was generated showing the distribution of patients with and without heart disease for each ECG category: Normal, ST-T Abnormality, and LV Hypertrophy (Left Ventricular Hypertrophy).

The analysis reveals that Flat ST slope is the most indicative pattern of heart disease presence. The visualization shows a clear comparison of heart disease rates across the three ST slope patterns, with Flat slope demonstrating the highest association with heart disease.

The highest-risk patients are males aged 51-60 years with high cholesterol levels (240-300 mg/dL). This specific combination accounts for 25 patients in the dataset and represents the most common profile among those with heart disease.