Table 3.

Multivariate analysis of association between CDAI and S-Klotho plasma levels.

Characteristic	Model I	P value	Model II	P value
CDAI	2.95 (1.47, 4.42)	<0.001	2.56 (0.65, 4.47)	<0.01
Vitamin A	7.56 (3.44, 11.69)	<0.01	6.87 (2.89, 10.86)	<0.001
Vitamin C	10.33 (2.40, 18.26)	0.01	7.29 (-1.41, 15.99)	0.10
Vitamin E	2.92 (-4.12, 9.95)	0.41	1.75 (-6.59, 10.10)	0.68
Mg	3.82 (-3.10, 10.74)	0.28	5.47 (-2.80, 13.74)	0.19
Zinc	0.53 (-5.99, 7.06)	0.87	5.98 (-1.80, 13.77)	0.13
Se	-1.39 (-9.44, 6.65)	0.73	6.24 (-3.56, 16.05)	0.21
Stratified by CDAI (quartile)
Q1	5.22 (-5.92, 16.37)	0.35	1.04 (-12.05, 14.14)	0.87
Q2	-3.40 (-23.20, 16.40)	0.73	-4.49 (-24.18, 15.20)	0.65
Q3	-3.04 (-18.83, -12.76)	0.70	-3.45 (-19.34, 12.45)	0.67
Q4	2.66 (0.05, 5.26)	0.04	2.78 (0.50, 5.07)	0.02
Stratified by age (years)
<60	2.58 (0.66, 4.49)	<0.01	1.19 (-1.45, 3.83)	0.37
≥60	3.61 (0.81, 6.41)	0.01	5.92 (2.05, 9.79)	<0.01
Stratified by gender
Female	2.72 (0.12, 5.32)	0.04	-0.09 (-3.65, 3.48)	0.96
Male	3.06 (1.26, 4.85)	<0.01	3.94 (1.93, 5.95)	<0.01
Stratified by smoke
Never	3.53 (1.43, 5.63)	<0.01	3.34 (0.62, 6.06)	0.02
Former	0.39 (-2.69, 3.48)	0.80	1.10 (-2.68, 4.89)	0.56
Now	1.44 (-1.80, 4.67)	0.38	1.16 (-4.02, 6.35)	0.66

CDAI: composite dietary antioxidant index; BMI: body mass index. Model I: age, sex, and race were adjusted. Model II: age, sex, marital status, race, poverty, education, energy intake, BMI, waist circumference, smoke status, and medication use were adjusted.