Figure 2. Subgrouping of fibromyalgia (FM) samples based on their “familial and personal comorbidities” (Y axis) and “FM symptoms and their characteristics” (X-axis) scores.

Circles represent FM patients and are colored by cluster. Black circles for Cluster 1 (Low levels of symptoms and their characteristics and low levels of comorbidities), green circles for Cluster 2 (High levels of symptoms and high levels of comorbidities), and red circles for Cluster 3 (High levels of symptoms and low levels of comorbidities).