Table 3.

Representative studies that provide analytical data for evaluating the relationship between salivary glucose and blood glucose concentrations as a threshold response

Study	Species	Sample	Threshold (mg/dL)	Slope	r	P-value	Population
Forbat et al (1981)25	Human	Parotid salivaa	136.8	6.4	0.20	0.38	20 diabetic adultsb
Amer et al (2001)15	Human	Whole saliva	107.0	12.7	0.78	<0.05	135 diabetic adults
Abikshyeet et al (2012)14	Human	Whole saliva	99.7	13.0	0.77	<0.01	106 diabetic adults
Current study	Human	Whole saliva	84.8	13.5	0.33	0.006	65, 11-year-old children
Yamaguchi et al (1998)26
A	Human	Submaxillary +	110	22.4			6 healthy adults (A–F)c
B		sublingual saliva	68	87.1
C			104	13.8
D			60	111.1
E			105	46.7
F			88	51.0
Average			89.1±8.6	55.3±15.3
Hayford et al (1983)27	Human	Urine	152.7	47.4	0.80		24 diabetic adults
Langley et al (1958)24	Dogs	Parotid saliva	512.0				10–12 kg dogs

Notes: One study of urine glucose concentration is also included for comparison.

^aStimulated with lemon juice and parotid massage

^b50 μL samples only

^c75 g oral glucose tolerance test.