Table 1.

Baseline characteristics of the study participants.

	Total	Male	Female
Participants, N	33701	13249	20452
Age, years	62.3 ± 11.3	62.6 ± 11.4	62.0 ± 11.2
Smoking, N (%)	8332 (24.7)	6218 (46.9)	2114 (10.3)
Hypertension, N (%)	8499 (25.2)	3114 (23.5)	5385 (26.3)
IOP, mmHg	14.4 ± 2.9	14.4 ± 2.9	14.4 ± 2.8
Lowering-IOP treatment, N (%)	343 (1.0)	110 (0.8)	233 (1.1)
Glaucoma, N (%)	713 (2.1)	283 (2.1)	430 (2.1)
PACG, N (%)	328 (1.0)	118 (0.9)	210 (1.0)
POAG, N (%)	247 (0.7)	115 (0.9)	132 (0.6)

IOP: intraocular pressure; PACG: primary angle-closure glaucoma; POAG, primary open-angle glaucoma.