Research Article

Effect of Coronary Computed Tomography Angiography Disease Burden on the Incidence of Recurrent Chest Pain

Table 3

Baseline demographic data, outcomes, and cost analysis based on burden of CAD in the LM.

No LM CAD
= 1289
Nonobstructive LM
= 222
Obstructive LM
= 7
value

Age51.8 ± 13.960.9 ± 12.672.9 ± 17.7<0.001
Male gender774 (60)139 (62.6)6 (85.7)0.303
Chest pain reevaluation, (%)143 (11.1)30 (13.5)1 (14.3)0.563
Time to reevaluation, days353 ± 342335 ± 304100 ± 00.732
Hospitalization at reevaluation, (%)64 (5.0)20 (9.0)1 (14.3)0.032
Hospital LOS, days1.2 ± 0.51.8 ± 1.31.0 ± 00.005
Repeat testing, (%)70 (5.4)19 (8.6)1 (14.3)0.122
Tests per patient, mean0.06 ± 0.30.1 ± 0.40.1 ± 0.40.131
Cost per patient, mean$18 ± 100$37 ± 139$83 ± 2200.019
All-cause mortality, (%)3 (0.2)0 (0)1 (14.3)<0.001
Stroke, (%)8 (0.6)5 (2.3)0 (0)0.05
MI, (%)9 (0.7)7 (3.2)0 (0)0.004
Late revascularization, (%)2 (0.2)3 (1.4)0 (0)0.016
Composite MACE, (%)20 (1.6)13 (5.9)1 (14.3)<0.001

LM: left main coronary artery.