The Wells Rule Does Not Adequately Rule Out Deep Venous Thrombosis in Primary Care Patients

Established in 1927 by the American College of Physicians

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The Wells Rule Does Not Adequately Rule Out Deep Venous Thrombosis in Primary Care Patients

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Table 1. The Wells Rule To Estimate the Probability of Deep Venous Thrombosis

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Figure. Study protocol and outcome. Results of the clinical score as estimated by the Wells rule, compression ultrasonography, and D-dimer testing are given. DVT = deep venous thrombosis.

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Table 2. Patient Characteristics

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Table 3. Diagnostic Performance of the Wells Rule

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Table 4. Application of Different Thresholds of the Wells Score