Cognitive Improvement and Safety Assessment of a Dietary Supplement Containing Propolis Extract in Elderly Japanese: A Placebo-Controlled, Randomized, Parallel-Group, Double-Blind Human Clinical Study

Table 2

Baseline characteristics of the study population.

	Placebo	Propolis	value
	(n = 33)	(n = 35)
Age	66.1 ± 4.5	66.6 ± 3.9	0.614
Gender (male/female)	18/15	16/19	—
BMI (kg/m^2)	22.8 ± 3.7	22.6 ± 2.7	0.917
MMSE	27.5 ± 1.4	27.5 ± 1.3	0.980

Values are mean ± SD. BMI, body mass index; MMSE, Mini-Mental State Examination.