Table 1.

Baseline characteristic of subjects.

Baseline data	Placebo	CA250	CA500	CA750
Age (years)	65.70 ± 4.88	64.60 ± 4.54	64.20 ± 5.11	66.75 ± 4.73  F(0.0500, 3.76) = 1.1380, P = .3392
Education (years)	10.90 ± 5.93	11.70 ± 5.55	11.25 ± 5.32	11.60 ± 6.08  F(0.0500, 3.76) = 0.0806, P = .9704
Blood pressure (mmHg)	120.75 ± 8.48/ 80.20 ± 6.35	116.40 ± 11.43/ 76.45 ± 7.04	119.90 ± 11.36/ 80.35 ± 7.62	121.80 ± 9.99  F(0.0500, 3.76) = 1.0165, P = .3902
				79.20 ± 6.12  F(0.0500, 3.76) = 1.4091, P = .2467
Blood sugar	94.75 ± 12.49	92.45 ± 5.89	93.20 ± 7.32	95.20 ± 12.40  F(0.0500, 3.76) = 0.3351, P = .8000
Body mass index	24.54 ± 4.33	22.87 ± 3.24	23.25 ± 2.50	23.75 ± 3.03  F(0.0500, 3.76) = 0.9312, P = .4299

Subjects were measured baseline characteristic. Data are presented as mean ± SD. P- and F-values were compared between groups (n = 20/group).