Central Sensitivity Is Associated with Poor Recovery of Pain: Prediction, Cluster, and Decision Tree Analyses

Figure 7

Decision tree analysis for cluster classification. The first predictive factor was CSI-9 BL < 8.5 or CSI-9 BL 8.5≦. The second predictive factor was ∆CSI-9 ≥ 0.5 or ∆CSI-9 < 0.5. The third predictive factor was ∆CSI-9 ≥ −7.5 or ∆CSI-9 < −7.5. Each square box shows the percentage of cluster affiliation when each predictor is met. Abbreviations: CSI-9, Central Sensitisation Inventory-9; BL, baseline; ∆, follow-up score minus the initial score; C, cluster.