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! align="left" colspan = "7" | Table 2. Clinical pre-test probabilities in patients with stable chest pain symptoms<Cite>REFNAME20</Cite>
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! align="left" colspan = "7" | Table 2. Clinical pre-test probabilities<sup>a</sup> in patients with stable chest pain symptoms<Cite>REFNAME20</Cite>
 
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! colspan = "7" | ECG = electrocardiogram; PTP = pre-test probability; SCAD = stable coronary artery disease.
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| colspan = "7" | <sup>a</sup> Probabilities of obstructive coronary disease shown reflect the estimates for patients aged 35, 45, 55, 65, 75 and 85 years.
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*Groups in white boxes have a PTP <15% and hence can be managed without further testing.
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*Groups in blue boxes have a PTP of 15–65%. They could have an exercise ECG if feasible as the initial test. However, if local expertise and availability permit a non-invasive imaging based test for ischaemia this would be preferable given the superior diagnostic capabilities of such tests. In young patients radiation issues should be considered.
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*Groups in light pink boxes have PTPs between 66–85% and hence should have a non-invasive imaging functional test for making a diagnosis of SCAD.
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*In groups in dark pink boxes the PTP is >85% and one can assume that SCAD is present. They need risk stratification only.
 
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