Utilization of CT Pulmonary Angiography in Suspected Pulmonary Embolism in a Major Urban Emergency Department

Table 3

Clinical probability groups based on Wells’ simplified prediction model.

Probability group	𝑛/𝑁	%
Low clinical probability	136/231	58.8
Moderate clinical probability	71/231	30.7
High clinical probability	8/231	3.5
Unknown	16/231	6.9