Health comparisons

Head-to-head guides for health tools — when to use each, how the inputs differ, and which one fits your situation. Browse all health tools →

• CHA2DS2-VASc vs CHADS2CHA2DS2-VASc vs CHADS2 for stroke risk in atrial fibrillation. Side-by-side comparison of scoring, cutoffs, and when to use each. Free calculators included.
• Wells DVT score vs Padua PredictionWells DVT vs Padua Prediction Score: outpatient diagnostic likelihood vs hospitalized VTE risk. When to use each and how the inputs differ.
• Wells PE score vs PERC ruleWells PE score vs PERC rule for pulmonary embolism workup. When to use each, decision thresholds, and how they combine in the diagnostic algorithm.
• MELD/MELD-Na vs Child-PughMELD/MELD-Na vs Child-Pugh score for cirrhosis severity. Which predicts transplant mortality better, when to use each, and key differences.
• Cockcroft-Gault vs CKD-EPICockcroft-Gault vs CKD-EPI 2021 for estimating kidney function. When to use each, accuracy, drug dosing considerations, and key differences.
• qSOFA vs SOFAqSOFA vs full SOFA score for sepsis. Bedside screening (qSOFA) vs ICU organ dysfunction quantification (SOFA). When to use each.
• TIMI vs HEART scoreTIMI risk score vs HEART score for chest pain in the ED. Which performs better at low-risk discharge decisions and 30-day MACE prediction.
• MDRD vs CKD-EPIMDRD vs CKD-EPI for estimated glomerular filtration rate. Why CKD-EPI replaced MDRD, accuracy at higher GFR, and the 2021 race-free update.
• APACHE II vs SOFAAPACHE II vs SOFA for ICU severity and mortality prediction. Admission-time prognosis vs dynamic organ dysfunction tracking — when to use each.
• DAS28-CRP vs DAS28-ESRDAS28-CRP vs DAS28-ESR for rheumatoid arthritis disease activity. Why CRP version is preferred in modern practice and how the cutoffs differ.