Table 2.

Association of single dietary vitamin intake with CVD prevalence among CKD populations.

Variables	Model 1		Model 2
	OR 95% CI	p-value	OR 95% CI	p-value
Tertiles of vitamin A, μg
Q1	ref		ref
Q2	0.91 (0.70, 1.18)	0.47	0.86 (0.66, 1.12)	0.26
Q3	0.81 (0.62, 1.07)	0.14	0.83 (0.61, 1.13)	0.23
Tertiles of vitamin B1, mg
Q1	ref		ref
Q2	0.92 (0.70, 1.21)	0.55	0.92 (0.67, 1.26)	0.60
Q3	0.89 (0.63, 1.25)	0.49	0.92 (0.64, 1.34)	0.67
Tertiles of vitamin B2, mg
Q1	ref		ref
Q2	1.02 (0.76, 1.35)	0.91	1.03 (0.78, 1.37)	0.83
Q3	0.84 (0.64, 1.11)	0.21	0.88 (0.64, 1.21)	0.41
Tertiles of vitamin B6, mg
Q1	ref		ref
Q2	0.70 (0.53, 0.93)	0.02	0.76 (0.55, 1.03)	0.08
Q3	0.60 (0.45, 0.79)	<0.001	0.67 (0.51, 0.89)	0.01
Tertiles of vitamin B12, μg
Q1	ref		ref
Q2	0.94 (0.73, 1.21)	0.62	1.02 (0.75, 1.38)	0.91
Q3	0.95 (0.71, 1.26)	0.70	0.98 (0.69, 1.39)	0.93
Tertiles of vitamin C, mg
Q1	ref		ref
Q2	0.82 (0.66, 1.04)	0.10	0.80 (0.61, 1.05)	0.11
Q3	0.71 (0.56, 0.91)	0.01	0.80 (0.63, 1.02)	0.07
Tertiles of vitamin D, μg
Q1	ref		ref
Q2	0.92 (0.67, 1.27)	0.61	0.83 (0.60, 1.16)	0.26
Q3	1.03 (0.76, 1.39)	0.84	0.92 (0.66, 1.29)	0.64
Tertiles of vitamin E, mg
Q1	ref		ref
Q2	0.64 (0.47, 0.87)	0.01	0.73 (0.51, 1.04)	0.08
Q3	0.52 (0.38, 0.72)	<0.001	0.61 (0.42, 0.87)	0.01
Tertiles of vitamin K, μg
Q1	ref		ref
Q2	0.85 (0.63, 1.13)	0.25	0.91 (0.69, 1.19)	0.47
Q3	0.62 (0.47, 0.81)	<0.001	0.74 (0.54, 1.02)	0.07

Model 1: No variables were adjusted. Model 2: Age, sex, ethnicity, marital status, poverty-income ratio, education level, body mass index, smoking status, drinking status, diabetes, hyperlipidemia, and hypertension were adjusted. OR, odds ratio; CI, confidence interval; CKD, chronic kidney disease; CVD, cardiovascular disease.