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. 2016 Feb 11;6:20607. doi: 10.1038/srep20607

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(A) The IL-31 levels in the pleural fluid were higher in patients with TPE than in patients with MPE. The short transverse line represents the median of different groups. (B) The receiver operating curve (ROC) analysis of IL-31 in the pleural fluid of TPE versus MPE patients. The area under the ROC (AUC) was 0.96. (C) Age was not correlated with the IL-31 levels in the TPE group (P = 0.11; R2 = 0.05). (D) Age was not correlated with the IL-31 levels in the MPE group (P = 0.17; R2 = 0.06). TPE: Tuberculous pleural effusion; MPE: Malignant pleural effusion.