Data Input
Paste Column Data

Copy each column from your spreadsheet and paste it into the box below. One value per line — rows must align across all columns.

Time Variable
Event Variable
Group Variable (OPTIONAL)
Kaplan–Meier Survival Analysis
Plot Parameters
Kaplan–Meier Plot

Load data then click
"Generate Survival Plot"

Survival Table Generator
Table Parameters

Leave empty to use all observed event times

Median Survival Summary
Run the analysis first, then generate the table.
Cox Proportional Hazards Regression
Cox Model Parameters

Cox regression uses your loaded Time and Event columns. The Group variable (if loaded) will be used as the covariate. You can also add extra numeric covariates below.

Paste one covariate per box — same row order as your time/event data.

How to Interpret

Hazard Ratio (HR): HR > 1 = increased hazard; HR < 1 = decreased hazard relative to reference.

95% CI: If the CI excludes 1, the effect is statistically significant.

p-value: Tests whether the covariate has a significant effect on survival.

concordance (C-index): Discrimination ability of the model; 0.5 = random, 1.0 = perfect.

Note: This implementation uses a Newton-Raphson partial likelihood approach. For large datasets or many covariates, results may differ slightly from R's coxph due to tie-handling differences (Efron vs Breslow).