E-value — Unmeasured Confounding — free, runs in your browser
Sensitivity analysis for observational studies: convert RR/OR/HR to the risk-ratio scale and compute how strong an unmeasured confounder (RR) would have… Computed in your browser — no data uploaded.
Open free tool →Runs in your browser
No software installation. Paste your data and get results instantly.
Publication-ready output
Export charts as SVG vector or HD/UHD PNG suitable for journal submission.
Data stays local
Nothing is uploaded. Your patient data never leaves your device.
Common questions
What are the original references?
VanderWeele TJ, Ding P. Ann Intern Med 2017;167:268-274. PMID 28693043.
When should I use E-value?
Sensitivity analysis for observational studies: convert RR/OR/HR to the risk-ratio scale and compute how strong an unmeasured confounder (RR) would have to be to explain away the association. Gives an E-value for the point estimate and for the CI …
Is my data safe?
All calculations run entirely in your browser. No data is sent to any server. You can even use the tool offline after the page loads.
Run E-value now
Sensitivity analysis for observational studies: convert RR/OR/HR to the risk-ratio scale and compute how strong an unmeasured confounder (RR) would have… Computed in your browser — no data uploaded.
Open free tool →Free to use. No account required. No data uploaded.
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