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Volume 390, Issue 10093, Pages 490-499 (July 2017)
Age-specific risks, severity, time course, and outcome of bleeding on long-term antiplatelet treatment after vascular events: a population-based cohort study Linxin Li, DPhil, Olivia C Geraghty, DPhil, Ziyah Mehta, DPhil, Prof Peter M Rothwell, FMedSci The Lancet Volume 390, Issue 10093, Pages (July 2017) DOI: /S (17) Copyright © 2017 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Terms and Conditions
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Figure 1 Annual rates of bleeding events requiring medical attention according to source of data Ascertainment in the Oxford Vascular Study, with multiple sources versus bleeding events identified by use of administrative hospital coding alone. Age-specific reasons for major bleeds that were not identified by administrative coding alone are reported in table 2. The Lancet , DOI: ( /S (17) ) Copyright © 2017 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Terms and Conditions
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Figure 2 Age-specific annual rate of bleeding events requiring medical attention Stratified by severity and by antiplatelet treatment immediately before the event. Annual rate derived as number per 100 patient-years. We used Clopidogrel in Unstable angina to prevent Recurrent Events (CURE) criteria to define bleeding events as major (substantially disabling with persistent sequelae, intraocular bleeding leading to significant loss of vision, or bleeding requiring transfusion of ≥2 units of blood) and life-threatening or fatal (symptomatic intracranial haemorrhage, fall in haemoglobin of ≥5 g/dL, hypotension requiring intravenous inotropes, or required surgical intervention or transfusion of ≥4 units of blood). The Lancet , DOI: ( /S (17) ) Copyright © 2017 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Terms and Conditions
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Figure 3 Distributions by age of severity of bleeding events requiring medical attention and of new or worsening disability attributable to bleeds The Lancet , DOI: ( /S (17) ) Copyright © 2017 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Terms and Conditions
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