Sigma Metric Analysis
Our first look at Abbott's newest, biggest chemistry instrument showed interesting Sigma performance. So we decided to take a second look, using 2007 AACC conference poster data. Does an on-site evaluation corroborate the manufacturer's evaluation?
In 2007, Scientists at the Mayo Clinic performed an interesting study of multiple POC glucose methods to evaluate their performance.We apply Westgard Sigma analysis to this data. Do you think world class performance is possible at the point of care?
Analysis of the Roche cobas 6000, apply the different analytical quality requirements for Glycated hemoglobin (GHb) and evaluate its performance. What requirements should you pick? What rules should you use?
When a new POC instrument reports it has great precision, is that all you need to know about performance?
We look at a 2008 poster from the AACC/ASCLS convention and evaluate method validation data on the Roche cobas c311. See how the data can be converted into Sigma-metrics and ponder the implications.