Positivity Rate Calculator

Calculate the positivity rate based on positive and negative outcomes

Input Parameters

Calculation Results

Positivity Rate

0%

Positive Results: 0

Total Tests: 0

Calculation Formula

Positivity Rate = (Positive Results / Total Tests) × 100%

Where:
- Positive Results: The number of positive outcomes
- Total Tests: The total number of tests conducted

Positivity Rate Calculator Usage Guide

Learn how to use the Positivity Rate Calculator and its working principles

How to Use the Calculator

  1. Enter the total number of tests conducted
  2. Enter the number of positive results
  3. Enter the number of negative results
  4. Click the "Calculate" button to compute the positivity rate

Understanding Positivity Rate

The Positivity Rate is a measure used in various fields such as medical testing, market research, and quality control. It represents the proportion of positive outcomes out of the total number of tests conducted.

Example Usage

For example, if a clinic conducted 1000 COVID-19 tests and 150 patients tested positive, the positivity rate would be (150/1000) × 100% = 15%.

Practical Applications

  • Medical Testing: To track infection rates in communities
  • Market Research: To measure customer satisfaction
  • Quality Control: To assess product defect rates