Table 2.

Descriptives (Mean and standard deviations) of cortisol measurements in the four time points

	Mean	SD	Range (Min-Max)
At awakening (S1)	12.78	5.42	2.84–30.95
+15 min (S2)	15.72	6.05	3.95–36.64
+45 min (S3)	16.66	6.88	5.16–36.90
Bedtime (S4)	10.51	6.09	2.15–32.38

Cortisol values are expressed in nmol/l