From the paper in Chest:
In the patients with an unlikely probability of PE (n = 477), VTE was confirmed in 1.1% of the patients with a normal d-dimer concentration (95% CI, 0.4 to 2.4%). In those patients with a likely clinical probability of PE (n = 86), VTE was confirmed in 9.3% of the patients with a normal d-dimer concentration (95% CI, 4.8 to 17.3%). The difference in VTE incidence between patients with unlikely and likely clinical probabilities of PE was significant (p less than 0.001).
1 comment:
Reminds me of the line from Samuel L Jackson's character on the Boondocks, "The absence of evidence is not the evidence of absence."
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