Table 4.

Risk of metabolic syndrome in the entire population according to the quartiles of serum 25‐hydroxyvitamin D levels

	Quartiles of 25‐(OH)D in the entire population
	Quartile 1	Quartile 2	Quartile 3	Quartile 4
Cut‐off points	≤9.84	9.85–13.99	14.00–19.49	≥19.5
Model 1	1.000 (ref.)	0.78 (0.57–1.08)	0.77 (0.58–1.09)	0.74 (0.53–1.02)
Model 2	1.000 (ref.)	0.76 (0.55–1.05)	0.73 (0.53–1.02)	0.65 (0.47–0.92)*
Model 3	1.000 (ref.)	0.76 (0.55–1.06)	0.74 (0.53–1.03)	0.67 (0.45–0.90)*

Model 1: unadjusted. Model 2: adjusted for l physical activity. Model 3: adjusted for the aforementioned plus total serum cholesterol, low‐density lipoprotein cholesterol and creatinine. *P < 0.05. 25‐(OH)D, 25‐hydroxyvitamin D.