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: Explanation and Clinical Context This estimator quantifies the potential impact of reducing average daily salt consumption on population-level blood pressure and cardiovascular risk. Excessive sodium intake is a major modifiable determinant of hypertension, which in turn is a leading cause of stroke, ischemic heart disease, and chronic kidney disease. Meta-analyses have consistently demonstrated that for every 1 gr
Screening ECG Yield in Primary Care: Explanation and Clinical Context The Screening ECG Yield in Primary Care calculator estimates the Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of routine electrocardiographic (ECG) screening programs based on population disease prevalence and test characteristics (sensitivity and specificity). PPV and NPV are essential for evaluating the clinical yield of sc
Smoking Cessation Cardiac Event Reduction Model: Explanation and Clinical Context Smokers who quit experience a rapid decline in cardiovascular risk within the first few years, with heavy smokers (≥20 pack-years) achieving approximately a 39% lower risk of incident cardiovascular disease by 5 years compared with those who continue to smoke (hazard ratio ~0.61). Risk continues to decline more gradually over the follow
: Explanation and Clinical Context The ABCD2 score estimates early stroke risk after a transient ischemic attack (TIA) based on five clinical variables: age ≥ 60 years (1), blood pressure ≥ 140/90 mmHg (1), clinical features (unilateral weakness 2; speech disturbance without weakness 1), symptom duration (≥ 60 minutes 2; 10–59 minutes 1), and diabetes (1). Total 0–7. Risk stratification: Low (0–3), Moderate (4–5), Hi