Linked Life Data

18216292

Source:http://linkedlifedata.com/resource/pubmed/id/18216292

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pubmed-article:18216292pubmed:abstractTextRisk of venous thromboembolism (VTE) is elevated in cancer, but individual risk factors cannot identify a sufficiently high-risk group of outpatients for thromboprophylaxis. We developed a simple model for predicting chemotherapy-associated VTE using baseline clinical and laboratory variables. The association of VTE with multiple variables was characterized in a derivation cohort of 2701 cancer outpatients from a prospective observational study. A risk model was derived and validated in an independent cohort of 1365 patients from the same study. Five predictive variables were identified in a multivariate model: site of cancer (2 points for very high-risk site, 1 point for high-risk site), platelet count of 350 x 10(9)/L or more, hemoglobin less than 100 g/L (10 g/dL) and/or use of erythropoiesis-stimulating agents, leukocyte count more than 11 x 10(9)/L, and body mass index of 35 kg/m(2) or more (1 point each). Rates of VTE in the derivation and validation cohorts, respectively, were 0.8% and 0.3% in low-risk (score = 0), 1.8% and 2% in intermediate-risk (score = 1-2), and 7.1% and 6.7% in high-risk (score >/= 3) category over a median of 2.5 months (C-statistic = 0.7 for both cohorts). This model can identify patients with a nearly 7% short-term risk of symptomatic VTE and may be used to select cancer outpatients for studies of thromboprophylaxis.lld:pubmed
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pubmed-article:18216292pubmed:authorpubmed-author:LymanGary HGHlld:pubmed
pubmed-article:18216292pubmed:authorpubmed-author:KudererNicole...lld:pubmed
pubmed-article:18216292pubmed:authorpubmed-author:FrancisCharle...lld:pubmed
pubmed-article:18216292pubmed:authorpubmed-author:KhoranaAlok...lld:pubmed
pubmed-article:18216292pubmed:authorpubmed-author:CulakovaEvaElld:pubmed
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