Ruling out coronary heart disease in primary care: external validation of a clinical prediction rule by Jörg Haasenritter, Stefan Bösner, Paul Vaucher,

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Presentation transcript:

Ruling out coronary heart disease in primary care: external validation of a clinical prediction rule by Jörg Haasenritter, Stefan Bösner, Paul Vaucher, Lilli Herzig, Monika Heinzel-Gutenbrunner, Erika Baum, and Norbert Donner-Banzhoff BJGP Volume 62(599):e415-e421 June 1, 2012 ©2012 by British Journal of General Practice

Flow of patients. Flow of patients. Jörg Haasenritter et al. Br J Gen Pract 2012;62:e415-e421 ©2012 by British Journal of General Practice

Empirical ROC curves of main analysis and two sensitivity analyses. Empirical ROC curves of main analysis and two sensitivity analyses. Main analysis: patients with inconclusive diagnosis (n = 12) were excluded; sensitivity analysis 1: patients with inconclusive diagnosis were counted as ‘coronary heart disease positive’; sensitivity analysis 2: patients with inconclusive diagnosis were counted as ‘coronary heart disease negative’. Jörg Haasenritter et al. Br J Gen Pract 2012;62:e415-e421 ©2012 by British Journal of General Practice

Empirical ROC curve and area under the curve (AUC) of the current study (validation cohort 2) compared with the results in the derivation cohort and validation cohort 1.5. Empirical ROC curve and area under the curve (AUC) of the current study (validation cohort 2) compared with the results in the derivation cohort and validation cohort 1.5 Jörg Haasenritter et al. Br J Gen Pract 2012;62:e415-e421 ©2012 by British Journal of General Practice