Comparison of Newly Diagnosed Ocular Hypertension and Open-Angle Glaucoma: Ocular Variables, Risk Factors, and Disease Severity

Table 1

Demographic characteristics.

Characteristic	OAG (𝑛=292)	OH (𝑛=113)	𝑃-value^a
Age groups, 𝑛 (%)			0.001
18–44 years	22 (7.5)	15 (13.3)
45–64 years	137 (46.9)	70 (61.9)
≥65 years	133 (45.5)	28 (24.8)
Age, year, Mean ± SD	63.0±13.0	56.5±12.6	<0.0001
(Range)	(22–89)	(21–91)
Male/female, 𝑛 (%)	145 (49.7)/147 (50.3)	59 (52.2)/54 (47.8)	0.645
Race, 𝑛 (%)			0.013
Caucasian	241 (82.5)	107 (94.7)
Black	18 (6.2)	1 (0.9)
Asian	26 (8.9)	3 (2.7)
Other	7 (2.4)	2 (1.8)
Weight, mean ± SD (kg)	74.8 ± 15.6	80.9 ± 19.6	0.004
Height, mean ± SD (cm)	168.0 ± 10.6	167.9 ± 9.1	0.937
BMI, Mean ± SD (kg/m^2)	26.5 ± 5.0	28.6 ± 6.0	0.001
Location, 𝑛 (%)			0.015
Ontario	118 (40.4)	34 (30.1)
Quebec/atlantic	97 (33.2)	55 (48.7)
Western	77 (26.4)	24 (21.2)

Abbreviations: BMI: body mass index; 𝑛: number of subjects; OAG: open-angle glaucoma; OH: ocular hypertension; SD: standard deviation.
^aSignificance of differences between the OAG and OH groups was tested using the chi-square test for categorical data and the 𝑡-test for continuous data.