a) Annual diagnosed incidence of pulmonary embolism (PE), and b) annual full incidence of chronic thromboembolic pulmonary hypertension (CTEPH) per 100 000 population in Europe, the USA and Japan (crude rates for the year 2015). a) Annual diagnosed incidence of pulmonary embolism (PE), and b) annual full incidence of chronic thromboembolic pulmonary hypertension (CTEPH) per 100 000 population in Europe, the USA and Japan (crude rates for the year 2015). Henning Gall et al. Eur Respir Rev 2017;26:160121 ©2017 by European Respiratory Society