Table 3d. The YEARS score *.

Clinical signs of deep vein thrombosis (DVT)

Hemoptysis

Pulmonary embolism (PE) most likely diagnosis

D-dimer ≥500 ng/mL or ≥1,000 ng/mL †

*In patients without YEARS items and D-dimer <1,000 ng/mL, or in patients with ≥1 YEARS items and D-dimer <500 ng/mL, PE was excluded. All others had chest computed tomographic angiography (CTA).

†The primary outcome was number of venous thromboembolism (VTE) events during 3-month follow up. Of 3,465 patients, PE was excluded and CTA withheld in 1,651 patients with either no YEARS items and D-dimer level of <1,000 ng/mL or ≥1 YEARS items and D-dimer level of <500 ng/mL. VTE occurred in 0.43% of patients with PE excluded based on YEARS algorithm alone and 0.84% of patients with PE excluded based on CTA ³⁷.