Table 4.

logistic regression analysis to assess the relationship between XO and MetS.

	OR (95% CI)				P-value for trend
	Q1	Q2	Q3	Q4
Model 1	1	0.880 (0.448–1.729)	2.129 (1.082–4.188)	2.565 (1.082–5.216)	< 0.05
Model 2	1	0.890 (0.443–1.788)	2.063 (1.027–4.145)	2.881 (1.374–6.039)	< 0.05
Model 3	1	0.863 (0.428–1.740)	2.052 (1.020–4.126)	2.893 (1.377–6.075)	< 0.05

XO quartiles, Q1: ≤ 2.23 U/L, Q2: 2.24–3.72 U/L, Q3: 3.73–6.15 U/L, Q4: > 6.15 U/L. Dependent variable is MetS (yes) and independent variable is XO (U/L). Reference category is XO level Q1. Model 1: adjusted for age (years) and gender (male and female). Model 2: model 1 + SUA (mg/dL). Model 3: model 2 + physical activity (low vs medium/adequate) and smoking (Yes vs No). OR, odds ratio; CI, confidence interval.