Table 2 Assay variability in saliva samples. (A) Variability in 1,5-AG measurements with GlycoMark assay. (B) Variability in osmolality measurements with FISKO osmometer

(A) GlycoMark assay^a

 Number of samples

20

59

42

42

 Average 1,5-AG, µg/mL

4.08

4.11

4.94

14.6

 CV,  %

1.70

2.05

1.80

1.38

(B) Osmolality measurements^b

 Number of samples

20

59

–

–

 Average osmolality, mOsmol/kg

59

59

–

–

 CV, %

1.31

1.40

–

–