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Create a calculator
This video demonstrates how to build a simple risk calculator from a regression equation. The video demonstrates this process using the software package R with a function called pred.equ. The function is available in text file format on the bottom of this page. The R package ClevClinicQHS developed by Changhong Yu is also available for download and contains the pred.equ function.
Competing Risk Regression
Demonstrates how to build a competing risk regression model using the package QHScrnomo in R and how to turn this into an online risk calculator.
Using temporary variables
Temporary variables are a convenient way to calculate established formulas such as Body Mass Index and estimated Glomerular Filtration Rate in your risk calculators. This video demonstrates how the temporary variables can be used.
Create a grid calculator
Wouldn’t it be nice to display calculator results by different treatment options and different outcomes? This video shows how to create a grid of various treatment options and outcomes, which is great for comparative effectiveness research.