Table 5 shows the adjusted risk of prevalent CAC at the
baseline exam. In cross-sectional analysis adjusted for
demographics and lifestyle factors (model 1), quintile 2
(PR=0.92 [95% CI, 0.85–1.00]) and quintile 4 (0.90 [0.83–
0.99]) of calcium intake were statistically significantly associated
with a lower prevalence of CAC >0 when compared to
participants in quintile 1, although this association was
attenuated with further adjustments of CVD risk factors.
Calcium supplement use was not significantly associated with
prevalent CAC (PR=0.96 [0.91–1.02]). For those with CAC >0
at baseline exam, there was no cross-sectional association of
calcium intake with extent of CAC burden (Table 6).