Accuracy of the screening algorithm for the survey in detecting chronic thromboembolic pulmonary hypertension at 6, 12 and 24 months and over the 2-year period in all included pulmonary embolism patients and for transthoracic echocardiography (TTE) in the patients detected with dyspnoea

6 months12 months24 monthsOverall surveyOverall TTE
Subjects n50850650550897
Positive predictive value3.
Negative predictive value99.699.8100100100

Data are presented as %, unless otherwise stated.