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Fig. 3 | BMC Pulmonary Medicine

Fig. 3

From: Diagnostic efficacy of visual subtypes and low attenuation area based on HRCT in the diagnosis of COPD

Fig. 3

ROC curve for different methods on the diagnostic efficacy of COPD. A–C represented diagnostic efficiency of LAA, VS, LAA + VS respectively. D, E represented above indexes combined with basic characteristic in diagnosing COPD respectively. The plot showed that combining basic characteristics improved the diagnosis efficacy. Notes: LAA low attenuation area; VS visual subtypes, BC basic characteristics including symptoms, sex, BMI, mMRC scores and history of exacerbations

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BMC Pulmonary Medicine

ISSN: 1471-2466

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