Table 3.

Stress characteristics of participants (N=30)

	Mean (SD)
	Active (n=16)	Placebo (n=14)
Mean PSS Scores (SD)	13 (3.4)	12 (6.5)
Higher score (0–40)=greater stress over preceding month
Mean salivary cortisol levels (µg/dL; SD)
Time 1 (GCRC entry-a.m.)	0.40 (0.2)	0.39 (0.2)
Time 2 (5 hours postblistering-p.m.)	0.16 (0.2)*	0.14 (0.1)*
Time 3 (24 hours postblistering-a.m.)	0.34 (0.2)	0.39 (0.3)

^*Significantly different from both Times 1 and 3 within groups (p < .001).

PSS, Perceived Stress Scale.