Table 3 Event rates of the primary clinical outcomes for the FFR-CT tested group, with the risk of an event according to the FFR-CT result

From: Implementation of a national AI technology program on cardiovascular outcomes and the health system

 

Stenosis pin >0.80

(n = 2,701)

Stenosis pin ≤0.80

(n = 5390)

Unadjusted HR

(95% CI)

P value

No stenosis pin

(n = 753)

All-cause mortality

56 (2.1)

115 (2.6)

1.27 (0.92–1.74)

0.15

10 (1.3)

Cardiovascular mortality

7 (0.3)

34 (0.8)

3.00 (1.33–6.76)

0.008

2 (0.3)

MI

18 (0.7)

137 (3.1)

4.76 (2.91–7.77)

<0.001

3 (0.4)

Revascularization (PCI or CABG)

79 (2.9)

1,439 (32.8)

13.47 (10.74–16.89)

<0.001

4 (0.5)

PCI

68 (2.5)

1,128 (25.7)

11.74 (9.19–15.00)

<0.001

4 (0.5)

CABG

11 (0.4)

311 (7.1)

18.02 (9.88–32.88)

<0.001

0 (0)

All ICA performed

299 (11.1)

2,406 (54.9)

6.86 (6.08–7.74)

<0.001

36 (4.8)

ICA with revascularization

79 (2.9)

1,439 (32.8)

13.48 (10.75–16.91)

<0.001

4 (0.5)

ICA no revascularization

220 (8.2)

967 (22.1)

2.95 (2.55–3.41)

<0.001

32 (4.2)

  1. Cox-proportional hazard analysis for the primary outcomes at 2 years after index CT scan for the FFR-CT population (n = 7,863) using FFR-CT stenosis-specific values to categorize as positive (FFR-CT ≤0.80), negative (FFR-CT >0.80) or no FFR-CT value, with FFR-CT >0.80 as the reference comparator with unadjusted HR.