Table 3.

Association between DII and 25(OH)D

	Β (95% CI) p value
	Model 1	Model 2	Model 3
25(OH)D, serum (nmol/L)
DII (continuous)	– 1.41 (– 1.92, – 0.90) P < 0.001	– 1.72 (– 2.21, – 2.23) P < 0.001	– 1.83 (– 2.31, – 1.34) P < 0.001
DII categories
T1	0 (Ref)	0 (Ref)	0 (Ref)
T2	– 3.22 (– 5.66, – 0.78) P = 0.010	– 4.13 (6.46, – 1.79) P = 0.001	– 4.45 (– 6.75, – 2.14) P < 0.001
T3	– 6.94 (– 9.38,– 4.49) P < 0.001	– 8.41 (– 10.75,– 6.06) P < 0.001	– 8.96 (– 11.28, – 6.63) P < 0.001

Insensitivity analysis—dietary inflammatory index was converted from a continuous variable to a categorical variable (tertiles). 95%CI, 95% confidence interval; β: effect sizes

Model 1: no covariates were adjusted

Model 2: adjusted for gender, age, and race

Model 3: adjusted fo for age, gender, race, body mass index, diabetes mellites, systolic blood pressure, diastolic blood pressure, white blood cell, high-density lipoprotein, estimated glomerular filtration rate; albumin-to-creatinine ratio, urinary; alkaline phosphatase; albumin; serum glucose