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. 2021 Oct 11;23:256. doi: 10.1186/s13075-021-02631-7

Fig. 2.

Fig. 2

Unsupervised dimension reduction analysis and hierarchical clustering. A Factor analysis on mixed data separates 2 groups along axis 1, with strong concordance with patient severity status (catastrophic AOSD, blue; control cases, red; star, mean point of the group). B Hierarchical clustering identifies 2 clusters. Cluster 2 (black circles) strongly overlaps with catastrophic AOSD cases