Table 4. Comparison of IOP and the prevalence of OHT according to metabolic syndrome components.

Characteristics		IOP, mmHg	P valuea	No. of patients	OHT group	P valueb
Sex			0.633			0.892
	Male	15.51 ± 0.10		816	13 (1.2)
	Female	15.45 ± 0.10		1,080	28 (1.2)
Blood pressure, mmHg			0.014*			0.643
	≥ 130/85	15.83 ± 0.16		355	6 (1.5)
	< 130/85	15.40 ± 0.09		1,541	27 (1.1)
Fasting glucose, mg/dL			< 0.001*			0.164
	≥ 100	15.84 ± 0.12		610	13 (1.7)
	< 100	15.32 ± 0.09		1,286	20 (1.0)
Fasting insulin, μIU/mL			0.001*			0.129
	≥ 13	15.95 ± 0.17		337	9 (2.0)
	< 13	15.38 ± 0.08		1,559	24 (1.0)
HOMA-IR			< 0.001*			0.026*
	≥ 2.34	15.82 ± 0.13		639	17 (2.0)
	< 2.34	15.31 ± 0.08		1,257	16 (0.8)
BMI, kg/m2			0.001*			0.301
	≥ 25	15.72 ± 0.11		685	14 (1.6)
	< 25	15.34 ± 0.09		1,211	19 (1.0)
WC, cm			< 0.001*			0.057
	Male ≥ 90, Female ≥ 85	15.78 ± 0.12		569	15 (2.0)
	Male < 90, Female < 85	15.35 ± 0.09		1,327	18 (0.8)
Triglycerides, mg/dL			0.001*			0.962
	≥ 150	15.88 ± 0.15		474	9 (1.2)
	< 150	15.34 ± 0.09		1,422	34 (1.2)
HDL-C, mg/dL			0.879			0.321
	Male < 40, Female < 50	15.46 ± 0.13		505	9 (0.8)
	Male ≥ 40, Female ≥ 50	15.49 ± 0.09		1,391	24 (1.3)

Values are presented as mean ± standard error or number (%), unless otherwise indicated.

IOP = intraocular pressure, OHT = ocular hypertension, HOMA-IR = homeostasis model assessment of insulin resistance, BMI = body mass index, WC = waist circumference, HDL-C = high-density lipoprotein cholesterol.

^aThe t-test, ^bThe χ² test.

^*P < 0.05 was considered statistically significant.