Odds Ratio & Relative Risk

Name: Odds Ratio & Relative Risk
Author: UKM APPS

Android app by UKM APPS. Education · UKM APPS

Store rating: Unknown
Store rating count: Unknown
Download price: Free to download
In-app purchases: Not listed in captured metadata
Version: 1.0
Listing last refreshed: 2026-09-13

Store description excerpt

Odds Ratio & Risk — turn a 2×2 table into the numbers that actually answer "does this exposure change the outcome?" Enter the four counts and instantly get the relative risk, the odds ratio, the risk difference and the Number Needed to Treat, each with a 95% confidence interval, plus clear risk bars and a forest plot. Fully offline. Smokers and non-smokers, ill and well. Treated and untreated, recovered or not. Whenever you have an EXPOSURE and an OUTCOME, the data fits a little 2×2 table — and from that table you can measure exactly how much the exposure shifts the chance of the outcome. This app does the arithmetic and, just as importantly, shows you which measure to read and how to tell a real effect from chance. No sign-up. No internet needed. No data collected. Just clear, instant statistics. WHAT YOU CAN DO • Table — type the four counts (exposed/unexposed × outcome yes/no) into a clean 2×2 editor and instantly see every measure recompute. • Chart — see the risk of the outcome in each group as bars, and a forest plot of the relative risk and odds ratio with their 95% confidence intervals against the "no effect" line at 1. • Idea — learn the difference between risk and odds, what RR, OR, RD and NNT each mean, and how confidence intervals decide significance — with offline, beautifully typeset formulas that never overlap. • Sim — set the true relative risk and the sample size with + / - steppered sliders, draw a sample, and watch how a small effect needs a big sample for the interval to clear 1. • Cases — load real exposure/outcome studies (smoking, treatment trials and more) with one tap. WHAT YOU GET • Relative risk (RR) and odds ratio (OR), each with a 95% CI. • Risk difference (RD) and the Number Needed to Treat / Harm. • The risk in each group and a chi-square p-value. • Risk bars and a forest plot that show significance at a glance. WHY YOU'LL LIKE IT • The right measure — RR for cohort data, OR for case-control, explained. • Confidence intervals, not just point estimates — see the uncertainty. • Fully offline — every ratio, interval and formula works with no connection. • Hands-on — type exact counts, or simulate a study with sliders and + / - steppers. • Clean "Royal & Coral" design, easy on the eyes. • Privacy-friendly — your data stays on your device. Whether you are a student learning epidemiology, a clinician reading a trial, or anyone weighing a risk, Odds Ratio & Risk turns four numbers into a clear, honest answer in seconds. Download it, fill in your 2×2 table, and see how much the exposure really matters.

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