Health-Related Calculator Resources

2-way Contingency Table Analysis

This page computes various statistics from a 2-by-2 table. It will calculate the Yates-corrected chi-square, the Mantel-Haenszel chi-square, the Fisher Exact Test, and other indices relevant to various special kinds of 2-by-2 tables

Diagnositc Test Calculator

This calculator can determine diagnostic test characteristics (sensitivity, specificity, likelihood ratios) and/or determine the post-test probability of disease given the pre-test probability and test characteristics. It also computes given sample sizes and confidence intervals.

RX Desktop Dosage Calculator

The Rx Desktop Dosage Calculator tool computes the amount of medication in solution for oral, intramuscular, intravenous and subcutaneous injection to be administered when given a required dose, strength and unit volume.