In their article “Risk Factors for Venous Thromboembolism in Hospitalized Patients with Acute Medical Illness,” Alikhan et al1 define their objectives as identifying independent risk factors for venous thromboembolism (VTE) in the patients included in the Prophylaxis in Medical Patients with Enoxaparin (MEDENOX) study, with a view to building an evidence-based risk assessment model for thromboprophylaxis. I do not agree that such a model could be built on their data.
Lawrence YR. Risk Factors for Venous Thromboembolism. Arch Intern Med. 2004;164(21):2386–2387. doi:10.1001/archinte.164.21.2386-b
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