Table 1.

Coefficients of variation (CV) for three laboratory analyzers

Instrument	Method	Intra-assay CV	Inter-assay CV
Primus 386	Boronate affinity HPLC	0.9%	2.9%
Roche Integra 800	Immuno-turbidimetric	2.3%	2.4%
Tosoh A1c2.2 Plus	Ion-exchange HPLC	1.3%	< 4.0%