Table 4

Adjusted Odds Ratios and 95% CIs of Prevalent or High CAC or AAC across Quartile Categories of Energy-Adjusted Self-Reported Total (Dietary and Supplemental) Magnesium Intake

Quartile 1
(n = 673)
Quartile 2
(n = 674)
Quartile 3
(n = 674)
Quartile 4
(n = 674)
p Value
Magnesium intake, mg/dayp Linear trend
 Median258.8303.6351.1427.4
 Range159.8–283.9284.0–325.4325.5–383.6383.9–669.4
CAC >0
 Model 11 (Ref)0.95 (0.73–1.23)0.79 (0.60–1.03)0.60 (0.45–0.81)<0.001
 Model 21 (Ref)0.93 (0.71–1.23)0.79 (0.60–1.05)0.58 (0.43–0.79)<0.001
 Model 31 (Ref)0.84 (0.63–1.11)0.65 (0.47–0.89)0.42 (0.29–0.62)<0.001
CAC ≥90th
 Model 11 (Ref)1.20 (0.89–1.62)0.94 (0.68–1.29)0.71 (0.50–1.02)0.02
 Model 21 (Ref)1.26 (0.92–1.72)0.99 (0.71–1.38)0.71 (0.49–1.03)0.02
 Model 31 (Ref)1.20 (0.87–1.64)0.92 (0.64–1.32)0.63 (0.40–0.98)0.01
AAC >0
 Model 11 (Ref)0.99 (0.75–1.30)0.71 (0.54–0.94)0.70 (0.51–0.95)0.01
 Model 21 (Ref)1.07 (0.80–1.44)0.76 (0.56–1.02)0.77 (0.55–1.06)0.03
 Model 31 (Ref)1.02 (0.75–1.37)0.69 (0.49–0.95)0.66 (0.44–0.98)0.01
AAC ≥90th
 Model 11 (Ref)0.75 (0.57–0.99)0.62 (0.46–0.83)0.73 (0.54–0.99)0.05
 Model 21 (Ref)0.80 (0.59–1.08)0.65 (0.48–0.90)0.79 (0.57–1.10)0.17
 Model 31 (Ref)0.76 (0.56–1.04)0.61 (0.43–0.86)0.70 (0.47–1.05)0.10

Any calcification defined as AS 0 versus >0; high calcification as AS < versus ≥90th percentile for age and sex on the basis of a healthy reference population. For AAC, n = 2,681. Models adjusted for as in Table 2.

CI = confidence interval; other abbreviations as in Table 1.