Table 1. Demographic information of participants.

Parameters	All participants	EGCG group	Green tea group	Control group
Number	43 (100)	17 (39.53)	17 (39.53)	9 (20.93)
Age, mean±SD, y	23.5±3.01	24.1±2.83	23.5±3.48	22.3±2.24
Gender, female	48.84	41.2	58.8	44.4
Family history of glaucoma	7 (16.28)	4 (23.52)	1 (0.06)	2 (22.2)
Daily coffee consumption	33 (76.7)	12 (70.1)	16 (94.1)	5 (55.56)
Smoking	12 (27.9)	6 (35.3)	5 (29.4)	1 (11.1)
Moderate physical activity at least 2 times/wk	26 (60.5)	10 (58.8)	10 (58.8)	6 (66.67)

EGCG: Epigallocatechin gallate; SD: Standard deviation.

n (%)