Table 2.

Demographic characteristics of study participants

	Study 1: Healthy young adults			Study 2: Elderly subjects
Demographic	Part 1 (n = 18)	Part 2 (n = 12)	Part 3 (n = 48)*	(n = 29)*
Age (years)	32 ± 7	29 ± 6	28 ± 7	71 ± 5
Weight (kg)	78.2 ± 8.2	81.9 ± 9.7	77.5 ± 10.2	71.2 ± 11.7
Height (cm)	176 ± 8	178 ± 6	177 ± 8	165 ± 9
Sex	17 males (94%), 1 female (6%)	12 males (100%)	47 males (98%), 1 female (2%)	15 males (52%), 14 females (48%)
Race	15 White (83%), 3 Black (17%)	11 White (92%), 1 White/Other (8%)	38 White (79%), 6 Black (13%), 2 Asian (4%), 1 Other (2%), 1 Mixed (2%)	22 White (76%), 4 Black (14%), 3 Asian (10%)

Demographics are presented as mean ± SD for age, weight and height and as n (%) for sex and race.

^*Demographic characteristics were comparable for subjects assigned to study drug or placebo.