Table 2. The demographic and clinical characteristics of the sample groups.

	Study group (n = 70)	Control group (n = 35)	P-value*
Gender			0.333
Male	39	16
Female	31	19
Mean age±SD	53.37±18.68	55.80±16.95	0.519
Range in years	18–80	25–84
Primary diagnosis	POAG = 36	Cataract = 13
	CACG = 23	Refractive error = 13
	PACG = 11	Normal subjects = 9

POAG, primary open-angle glaucoma; CACG, chronic angle closure glaucoma, PACG, primary acute angle closure glaucoma.

Values are shown as the mean ± SD or the number of participants.

* P-values were derived from Student’s t-tests or Chi-Square tests.