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

Table 2

Reevaluations for chest pain based on CCTA disease burden.

	No CAD; 𝑛 = 52	Nonobstructive CAD; 𝑛 = 91	Obstructive CAD; 𝑛 = 31	𝑃 value
Age, years	52.8 ± 11.7	58.8 ± 13.5	56.4 ± 12.7	0.029
Male, 𝑛 (%)	23 (44.2)	46 (50.5)	18 (58.1)	0.470
Repeat testing, 𝑛 (%)	19 (36.5)	50 (54.9)	21 (67.7)	0.015
Repeat tests per patient	0.4 ± 0.5	0.7 ± 0.7	0.8 ± 0.7	0.006
Cost of additional testing per patient	$98	$226	$255	0.001
Mean time to 1st reevaluation, days	348 ± 375	355 ± 314	330 ± 332	0.938
Hospitalization at 1st reevaluation, 𝑛 (%)	18 (34.6)	49 (53.8)	18 (58.1)	0.046
1st reevaluation mean LOS, days	1.2 ± 0.5	1.3 ± 0.7	1.6 ± 1.0	0.810
2nd reevaluation, 𝑛 (%)	19 (36.5)	30 (33.0)	8 (25.8)	0.601
Mean time to 2nd reevaluation, days	567 ± 410	581 ± 301	439 ± 322	0.580
Hospitalizations at 2nd reevaluation, 𝑛	8 (15.4)	11 (12.1)	5 (16.1)	0.788
2nd reevaluation mean LOS, days	1.4 ± 0.7	1.6 ± 1.0	1.8 ± 1.8	0.810
3rd reevaluation, 𝑛 (%)	4 (7.7)	8 (8.8)	3 (9.7)	0.949
Mean time to 3rd reevaluation, days	592 ± 451	658 ± 425	485 ± 461	0.843
Hospitalizations at 3rd reevaluation, 𝑛	0 (0)	0 (0)	0 (0)	n/a
3rd reevaluation mean LOS, days	n/a	1.0 ± 0.0	1.0 ± 0.0	1.000
4th reevaluation, 𝑛	0 (0)	3 (3.3)	1 (3.2)	0.418
Mean time to 4th reevaluation, days	n/a	1008 ± 354	180 ± 0	0.180
Hospitalizations at 4th reevaluation, 𝑛	0	2 (3.3)	0	0.249
4th reevaluation mean LOS, days	n/a	1.0 ± 0.0	n/a	n/a