Table 3. Univariate and multivariable association between individual components of metabolic syndrome and decreased GFR.

Variables	Univariate Models*		Multivariable Models+
	OR (95%CI)	P-value	OR (95%CI)	P-value
Elevated blood pressure	1.37 (1.03–1.82)	0.028	1.34 (1.00–1.78)	0.047
Elevated triglyceride	1.43 (1.12–1.82)	0.005	1.14 (0.88–1.49)	0.319
Reduced HDL-cholesterol	1.93 (1.51–2.47)	<0. 001	1.88 (1.44–2.43)	<0.001
Elevated fasting glucose	1.51 (1.16–1.95)	0.002	1.42 (1.09–1.85)	0.009
Obesity	0.97 (0.76–1.23)	0.795	0.78 (0.61–1.00)	0.054

GFR, glomerular filtration rate; CI, confidence interval; OR, odds ratio.

*Univariate models were adjusted for age and gender.

⁺Multivatiate models were adjusted for age, gender and all the five metabolic syndrome components.