Table 5.

Gender Difference of Prevalence and Adjusted Odds Ratio of Glaucoma, Stratified According to Quartile Categories of Blood Folate Level Among Representative Korean Adults Aged 40 Years or Older

	Quartile Blood Folate Level (ng/mL)
	Quartile 1	Quartile 2	Quartile 3	Quartile 4	P for Trend
Men
Glaucoma Prevalence	3.1 (0.1, 2.9–3.4)	4.7 (1.0, 3.1–7.2)	4.7 (1.8, 2.1–10.0)	3.7 (0.9, 2.2–6.0)	0.365
Unweighted number	11	10	5	6
OR	1.0 (reference)	1.310 (0.912–1.881)	0.850 (0.402–1.797)	1.004 (0.605–1.666)	0.491
Women
Glaucoma prevalence	7.1 (1.8, 4.2–11.7)	2.5 (0.7, 1.5–4.2)	3.9 (0.3, 3.4–4.6)	1.9 (0.3, 1.5–2.5)	0.167
Unweighted number	9	6	11	9
OR	1.0 (reference)	0.319 (0.144–0.707)	0.503 (0.285–0.887)	0.188 (0.099–0.357)	<0.001*

Prevalence was expressed as weighted estimates [%] (standard errors [%], 95% confidence intervals).

^* P < 0.05