Table 3.

Reasons for not pursuing a recommended deferred testing strategy in very low-risk patients, as determined by the treating physician

Variable	SDE plus CAD-score arm	SDE-only arm
	CAD score ≤ 20	PTP ≤ 5%
Very low-risk patients, n	374	137
Referred for a diagnostic test, n	185 (49.5%)	65 (47.4%)
PTP, median [range]	10 [1–44]	3 [1–5]
Reason for testing in very low-risk patients
CV risk factors	137 (74%)	42 (64.6%)
Typical anginal symptoms	42 (22.7%)	8 (12.3%)
Abnormal ECG, CPET, or echocardiography	1 (0.5%)	2 (3.1%)
Competing cardiac or non-cardiac condition	7 (3.8%)	5 (7.7%)
Physician preference	4 (2.2%)	1 (1.5%)
Patient preference	4 (2.2%)	15 (23.1%)
Other	9 (4.9%)	1 (1.5%)

CAD, coronary artery disease; CV, cardiovascular; PTP, pre-test probability; SDE, standard diagnostic examination.