| Model ID | 97-014-01 | 
 | Model Name | Wells Score 1997 | 
 | Pubmed ID | 9428249 | 
 | First Author | Wells | 
 | Journal | Lancet | 
 | Year | 1997 | 
 | Title | Value of assessment of pretest probability of deep-vein thrombosis in clinical management | 
 | Primary Index Condition | Venous Thromboembolism (VTE) | 
 | Secondary Index Condition | Diagnosis | 
 | Outcome | Venous Thromboembolism (VTE) | 
 | Model Sample Size | 593 | 
 | Cohort Sample Size | 593 | 
 | Number of Events | 95 | 
 | Follow-Up Duration | Diagnosis | 
 | AUROC | NR | 
 | Calibration Reported | 1 | 
 | Covariates | Active cancer (treatment ongoing or within previous 6 months or palliative); Paralysis, paresis, or recent plaster immobilization of the lower extremities; Recently bedridden for more than 3 days or major surgery, within 4 weeks; Localized tenderness along the distribution of the deep venous system; Entire leg swollen; Calf swelling by more than 3 cm when compared to asymptomatic leg (measured 10 cm below tibial tuberosity); Pitting edema (greater in symptomatic leg); Collateral superficial veins (non-varicose); Alternative diagnosis as likely or greater than that of deep vein thrombosis | 
 | Mesh Terms | To be updated | 
 | Number of Validations | 2 |