Research Article

A Four-miRNA-Based Diagnostic Signature for Rheumatoid Arthritis

Figure 3

The construction of the logistic regression diagnostic model. (a) Nine miRNAs screened based on the stepwise regression analysis. suggested that the miRNA contributed more to the model. (b) The correlation heat map of four key miRNAs in the model. The deeper the red and blue, the greater the correlation between them. (c) The component plus residual plot of 4 key miRNAs in the model. The obvious linear relationship between the horizontal and vertical axis implies that the independent variables are suitable to be brought in the model. (d) The ROC curve of the logistic regression diagnostic model. The AUC (area under the curve) value can intuitively evaluate the quality of the model; the larger the AUC value from 0 to 1, the better the model. (e) Higher hsa-miR-99b-5p expression was observed in RA samples compared with controls.
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