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Heart Failure Survival Analysis In Minutes

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Running heart failure survival analysis analysis...

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How it works

Kaplan-Meier survival curves and multivariable Cox proportional hazards regression identify independent mortality predictors in heart failure patients, with time-dependent AUC validation

Use when you have time-to-event data with censoring and want to identify clinical risk factors for mortality or other outcomes

Do not use if events are rare (fewer than 10), follow-up is too short, or covariates are highly collinear without adjustment

Built for: Biostatisticians, clinical data analysts, clinical researchers, epidemiologists, health data scientists, and medical researchers

Typical data source: Patient cohort records with follow-up time, event indicator (death/censored), and clinical covariates such as age, lab values, and comorbidity flags

healthcarepharmaceuticalsacademic researchpublic health

What data do you need?

Dataset with 13 columns

time (numeric) event (binary) age (numeric) ejection_fraction (numeric) serum_creatinine (numeric) serum_sodium (numeric) creatinine_phosphokinase (numeric) platelets (numeric) anaemia (binary) diabetes (binary) high_blood_pressure (binary) sex (binary) smoking (binary)

Minimum 30 rows

What's in the report?

Heart Failure Clinical Records (Kaggle, 299 patients, 13 variables) tracks follow-up time and mortality outcome alongside clinical measurements. Build a full survival analysis report: overall Kaplan-Meier survival curve, stratified curves by key risk factors, Cox proportional hazards model with hazard ratios + CIs, proportional hazards assumption checks, and a time-dependent ROC.

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Overall Kaplan-Meier Survival Curve

Overall Kaplan-Meier survival curve with 95% confidence interval

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Stratified Survival by Sex

Kaplan-Meier survival curves stratified by patient sex

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Stratified Survival by Clinical Risk Factors

Kaplan-Meier survival curves for binary risk factors (anaemia, diabetes, hypertension, smoking)

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Log-Rank Test Results by Risk Factor

Log-rank test p-values for binary clinical covariates

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Cox Proportional Hazards — Hazard Ratios

Cox model hazard ratios with confidence intervals for all predictors

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Cox Model Coefficients Table

Complete Cox regression coefficient table with statistics

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Proportional Hazards Assumption Check (Schoenfeld Residuals)

Schoenfeld residuals over time to assess proportional hazards assumption

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Time-Dependent Predictive Accuracy (AUC)

Time-dependent AUC at 30, 90, and 180-day landmarks

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AI Insights

Plain-English interpretation — what the numbers mean, what's significant, and what to do next.

Related tools

Need something simpler? Diabetes Risk Drivers — When you only need to identify which factors predict a binary outcome and follow-up time is not available or not relevant -- logistic regression without a time component

Need more power? Propensity Score Matching — When your cohort is observational and you need to control for treatment-selection bias before comparing survival outcomes between groups

Similar: Survival Analysis, Stroke Risk Factors

The Question This Answers

Clinical risk stratification

Clinical risk stratification

Questions?

See our FAQ for details on pricing, data privacy, and how the analysis works. Every report includes a Methodology section showing the statistical test, assumptions checked, and diagnostics run.

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