Table 1.

Cortisol Concentrations and Change in Cortisol Over Time Compared to Time Point 1

	Time Point
	1	2	3	4	5
Mean	4.206	5.376	5.496	4.263	5.706
SD	3.472	5.395	5.367	4.268	7.872
Median	3.392	3.714	3.976	2.537	3.746
Range	0.76–16.81	0.39–23.22	0.55–22.72	0.29–19.85	0.24–38.47
Mean change		1.079	1.199	−0.0331	0.381
P value		.07	.19	.37	.96

Signed rank test was used to compare the mean change in cortisol from time point 1 to each other time point with corresponding P value.