Table 3.
CAC Levels According to FAC Ranked Categoriesa
| Characteristic | FAC (% predicted) |
P valuec | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ≤69 |
70-99 |
100-129 |
≥130 |
||||||
| No.b | Median (IQR) | No.b | Median (IQR) | No.b | Median (IQR) | No.b | Median (IQR) | ||
| Overall | 131 | 21 (1-125) | 1314 | 4 (0-60) | 1329 | 2 (0-59) | 172 | 18 (0-129) | <.001d,e,f,g |
| Age group (y) | |||||||||
| ≤49 | 45 | 3 (0-29) | 560 | 0 (0-7) | 444 | 0 (0-5) | 40 | 0 (0-36) | .002d,e |
| 50-59 | 60 | 21 (1-165) | 576 | 8.5 (0-83.5) | 637 | 4 (0-59) | 82 | 15.5 (0-128) | .002f,h |
| ≥60 | 26 | 83.5 (9-298) | 178 | 82.5 (12-306) | 248 | 59 (3.5-243.5) | 50 | 69 (1-281) | .58 |
| Family history of premature CAD | |||||||||
| No | 89 | 21 (0-88) | 950 | 3 (0-59) | 946 | 1.4 (0-54) | 107 | 13 (0-100) | .001d,e,g |
| Yes | 37 | 10 (0-158) | 345 | 6 (0-66) | 359 | 6 (0-77) | 63 | 34 (0-270) | .11 |
a
CAC = coronary artery calcium; CAD = coronary artery disease; FAC = functional aerobic capacity; IQR = interquartile range.
b
Number of patients with information available.
c
CAC was compared across FAC groups using the Kruskal-Wallis test. If the overall comparison across groups was statistically significant, supplemental pairwise group comparisons were performed using the Wilcoxon rank-sum test.
d
P<.05 for pairwise comparison of ≤69% vs 70%-99%.
e
P<.05 for pairwise comparison of ≤69% vs 100%-129%.
f
P<.05 for pairwise comparison of 70%-99% vs ≥130%.
g
P<.05 for pairwise comparison of 100%-129% vs ≥130%.
h
P<.05 for pairwise comparison of 70%-99% vs 100%-129%.