Table 2.
Association of quartiles of vertebra bone density with coronary artery calcification score and the presence of coronary artery calcification.
| Quartile of vertebra bone density | Q1 (n = 282) |
Q2 (n = 285) |
Q3 (n = 283) |
Q4 (n = 284) |
p-value for trend |
|---|---|---|---|---|---|
| CAC score, median (75th and 90th percentile) |
0 (10.3, 51.4) |
0 (4.1, 42.2) |
0 (4.4, 30.1) |
0 (3.8, 27.1) |
0.534 |
| Presence of CAC (%) | 25.2 | 19.0 | 15.6 | 16.2 | 0.004 |
Quartile of vertebra bone density is based on Hounsfield Unit (HU). Range of HU was 61.4–151.6 for Q1, 151.6–175.35 for Q2, 175.35–196.9 for Q3 and 196.9–325.8 for Q4. Presence of CAC was defined as coronary calcification score ≥10.
CAC: coronary artery calcification.