VLAD Charts

Variable Life Adjusted Display (VLAD) charts are a visual way of monitoring clinical outcomes adjusted for risk.

We have developed a Microsoft Excel spreadsheet tool that can be used to draw VLAD charts to help with outcomes monitoring and audit. Risk adjustment can be implemented with a different risk for each data record or with a single risk of an adverse outcome applied to all the data (for instance an average mortality rate). Please contact Christina Pagel to request a copy.

The orginal paper discussing the VLAD method applied to cardiac surgery is:

Lovegrove J, Valencia O, Treasure T, Sherlaw-Johnson C, Gallivan S. Monitoring the results of cardiac surgery by variable life-adjusted display. Lancet. 1997;350(9085):1128-1130.

A paper discussing the use of VLAD in a global health context is:

Pagel C, Prost A, Nair N, Tripathy P, Costello A, Utley M  (2012)
Monitoring mortality trends in low-resource settings
Bull World Health Organ 2012;90:474–476

A brief description of the VLAD method, implementation and caveats is also available.

Software Requirements: Microsoft Office Excel 97 or higher. Macros must be enabled when using this software.