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

Table 4

Probability groups and prevalence of PE.

Prevalence of PE	𝑛/𝑁	%
Overall	48/231	20.7
Low clinical probability group	10/136	7.3
Moderate clinical probability group	30/71	42.2
High clinical probability group	8/8	100
Unknown	0/16	0