Baseline characteristics, patients referred and not referred for additional diagnostic testing.

aIndependent samples T-test; bMann- Witney U-test; cData only available for patients primarily suspected of DVT; dData only available for patients primarily suspected of pulmonary embolism; eprovided p-values over the total groups of patients. The p-values within the strata ‘primarily suspected of PE’ or ‘primarily suspected of DVT’ were >0.05.