Table 2.

Contrast of the values of the tested salivary variables with reference standards of normality.

Variable	Minimum	Maximum	Mean	95% Confidence interval	Normal reference values
Pregnant (n = 22)
Flow rate (mL/min)	0.12	1.73	0.59	[0.43–0.75]	0.1 – 0.5*
PH	5.9	7.6	6.7	[6.5–6.9]	5.5 – 7.4**
Calcium (mmol/L)	0.5	1.8	1.1	[0.9–1.2]	0.5 – 2.7 *
Phosphate (mmol/L)	2.4	9.1	5.6	[4.8–6.5]	1.9 – 22.9 *
sIgA (mg/L)	12.0	185.0	118.9	[98.0–139.7]	60 – 300 ***
Non-Pregnant (n = 22)
Flow rate (mL/min)	0.20	1.53	0.64	[0.50–0.78]	0.1 – 0.5 *
PH	6.6	8.0	7.5	[7.3–7.6]	5.5 – 7.4**
Calcium (mmol/L)	0.4	1.8	0.9	[0.8–1.1]	0.5 – 2.7 *
Phosphate (mmol/L)	2.6	12.7	5.6	[4.6–6.7]	1.9 – 22.9 *
sIgA (mg/L)	34.0	173.0	90.1	[74.6–105.6]	60 – 300 ***

*Edgar (1992); **Thylstrup & Fejerkov (1994); ***Dade Behring^®