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.
If you are looking for information related to use of VLADs for children's heart surgery in the UK, then please read our Congenital Heart Disease PRAiS page about that bespoke risk model and software.
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.