Table 1.

Summary of Caffeine Exposure (Actual Doses)

	Planned caffeine doses
Statistic	Caffeinated chewing gum 50 mg	Caffeinated beverage 50 mg
Actual mean dose (mg)	40.81	50.65
SD	3.206	0.496
Median	40.62	50.45
Min., max.	34.07, 48.41	49.88, 51.39
n	16	16

n, number of subjects; SD, standard deviation.