Table 6.

Results of 2011 Power Calculations (for Standardized Effect Size)

Variable	Correlation Between Pre-Exposure and Post-Exposure (r)	Correlation of Change at Two Adjacent Visits (r′)	Sample Size
			N = 90	N = 54
FMD (%)	0.8	0.2	1.12	1.45
		0.1	1.18	1.54
	0.5	0.2	1.76	2.30
		0.1	1.87	2.44
QTc (ms)	0.8	0.2	6.2	8.1
		0.1	6.6	8.5
	0.5	0.2	9.8	12.7
		0.1	10.4	13.5
SDNN (ms)	0.8	0.2	8.4	11.0
		0.1	9.0	11.7
	0.5	0.2	13.3	17.4
		0.1	14.2	18.4
vWF (ng/mL)	0.8	0.2	3.6	4.7
		0.1	3.8	5.0
	0.5	0.2	5.7	7.5
		0.1	6.1	7.9