Table 4.
Events in different CCTA groups stratified by CAC burden in intermediate risk patients.
|
Hard ASCVD |
MACCE |
||||||
|---|---|---|---|---|---|---|---|
| Total | Events (%) | Event Rate per 1000 Person-Yrs | HR (95 % CI) | Events (%) | Event Rate per 1000 Person-Yrs | HR (95 % CI) | |
| CAC=0 | |||||||
| No plaque | 1623 | 5 (0.3 %) | 0.9 (0.4–2.2) | 1 (reference) | 6 (0.4 %) | 1.1 (0.5–2.5) | 1 (reference) |
| Non-obstructive CAD | 347 | 3 (0.9 %) | 2.5 (0.8–7.8) | 2.9 (0.7–12.4) | 9 (2.6 %) | 7.6 (3.9–14.5) | 6.7 (2.4–19.0) |
| Obstructive CAD | 109 | 3 (2.8 %) | 8.3 (2.7–25.5) | 9.9 (2.3–42.4) | 10 (9.2 %) | 27.6 (15.0–50.8) | 24.5 (8.8–68.2) |
| CAC=1–99 | |||||||
| Non-obstructive CAD | 879 | 11 (1.3 %) | 3.9 (2.2–7.1) | 1 (reference) | 18 (2.0 %) | 6.4 (4.1–10.2) | 1 (reference) |
| Obstructive CAD | 129 | 3 (2.3 %) | 7.3 (2.4–22.6) | 1.8 (0.5–6.7) | 12 (9.3 %) | 29.3 (16.8–51.2) | 4.3 (2.0–9.0) |
| CAC≥100 | |||||||
| Non-obstructive CAD | 587 | 18 (3.1 %) | 9.5 (6.0–15.1) | 1 (reference) | 33 (5.6 %) | 17.5 (12.5–24.5) | 1 (reference) |
| Obstructive CAD | 266 | 10 (3.8 %) | 12.1 (6.5–22.3) | 1.3 (0.6–2.8) | 30 (11.3 %) | 36.2 (25.5–51.4) | 2.0 (1.2–3.2) |
Adjusted for age and sex.
ASCVD, atherosclerotic cardiovascular disease; MACCE, major adverse cardiac and cerebrovascular event; CI, confidence interval; HR, hazard ratio; CAC, coronary artery calcium; CCTA, coronary computed tomography angiography; CAD, coronary artery disease.