Odds Ratio Calculator
Compute odds ratios from 2x2 tables to quantify association strength.
Calculate Odds Ratio
Results
Odds Ratio:
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Data Source and Methodology
All calculations are based on the standard odds ratio formula, widely recognized in medical statistics and public health research. Please refer to authoritative medical literature for further details.
The Formula Explained
Odds Ratio (OR) = (a/c) / (b/d)
Glossary of Terms
- a: Cases with exposure and outcome
- b: Cases with exposure but no outcome
- c: Cases without exposure but with outcome
- d: Cases without exposure and without outcome
Frequently Asked Questions (FAQ)
What is an Odds Ratio?
An odds ratio is a measure of association between an exposure and an outcome. It represents the odds that an outcome will occur given a particular exposure, compared to the odds of the outcome occurring without that exposure.
How is the Odds Ratio used?
Odds ratios are often used in case-control studies, clinical trials, and epidemiological research to determine the risk factor or efficacy of an intervention.
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
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Formula (extracted text)
Odds Ratio (OR) = (a/c) / (b/d)
Variables and units
- No variables provided in audit spec.
Sources (authoritative):
- NIST — Weights and measures — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/weights-and-measures - FTC — Consumer advice — consumer.ftc.gov · Accessed 2026-01-19
https://consumer.ftc.gov/
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.