Table 2.

Methods of Glucose Measurement Analysis in 5409 Laboratories^a,^b

Method	Number	Percentage of total	Mean (mg/dl)	CV (%)c
Hexokinase
Photometric (visible) 2.8	107	4	155.1
Photometric (ultraviolet)	2668	49	154.2	2.4
Glucose oxidase
Photometric	1351	25
Automated (1327)			154.5	2.6
Manual (24)			158.3	4.5
Oxygen electrode	1148	21	157.5	2.2
Glucose dehydrogenase	35	1	154.17	2.5

^aResults are based on 2003 Cap Survey, Set C-A, Specimen C-11 “Number,” and numbers in parentheses indicate how manylaboratories used the indicated method type.

^bReproduced with permission from Elsevier.⁵⁶

^cCoefficient of variation for all results by all methods of the indicated method type from all manufacturers. It may include a component of variations attributable to differences in calibrators and to matrix effects.