Table 3.

Association of serum vitamin D with SII in NHANES 2007–2018 participants

	crude model		model 1		model2
	β (95% CI)	P value	β (95% CI)	P value	β (95% CI)	P value
VD ≤ 25	-0.60 (-27.96, 26.76)	0.97	45.08 (17.73, 72.43)	0.002	26.05 (-0.65, 52.75)	0.06
25 < VD ≤ 50	2.49 (-10.34, 15.31)	0.70	23.57 (10.92, 36.22)	< 0.001	12.78 (0.68, 24.89)	0.04
50 < VD ≤ 75	1.00	-	1.00	-	1.00	-
VD>75	14.95 (2.03, 27.88)	0.02	-5.50 (-18.17, 7.17)	0.39	5.43 (-6.97, 17.83)	0.39

crude model: unadjust

model 1: adjust for age, gender, race and BMI;

model 2: adjust for age, sex, race, BMI, smoking history, alcohol consumption history, hypertension history, and diabetes history