Cochran–Armitage Trend Test — free, runs in your browser
Test whether a binary outcome rate shows a linear trend across ordered groups (e.g. increasing dose/grade). More targeted than chi-square — specifically… 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
When should I use Cochran–Armitage Trend Test?
Test whether a binary outcome rate shows a linear trend across ordered groups (e.g. increasing dose/grade). More targeted than chi-square — specifically detects a monotone dose-response — with a grouped-rate trend bar chart.
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 Cochran–Armitage Trend Test now
Test whether a binary outcome rate shows a linear trend across ordered groups (e.g. increasing dose/grade). More targeted than chi-square — specifically… Computed in your browser — no data uploaded.
Open free tool →Free to use. No account required. No data uploaded.
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