Improving the Glucose Meter Error Grid with the Taguchi Loss Function



A couple of entries ago, I mentioned an upcoming publication. It has now appeared in the J Diab Sci Techol ahead of print (subscription required).

Basically, each glucose meter result in the A zone of an error grid has its difference from reference squared and that value scaled ranging from 0 (result=reference) to 1 (result is on the A zone boundary). If the value is outside of the A zone no A zone Taguchi loss value is calculated. These “Taguchi loss” values are then averaged to give the average Taguchi loss (ATL). One can calculate the ATL for all zones, although I did not do this for the article.

The ATL represents a way to distinguish performance among different glucose meters with similar performance (most values in the A zone and no values beyond the B zone). I believe it is an improvement over the MARD statistic (mean absolute relative deviation).


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: