Figure 1

Potential patterns of heterogeneity in symptom syndromes and trajectories of common mood and anxiety disorders. Notes: A. represents homogeneity; B. represents the X potential phenotypes resulting from heterogeneity of trajectories but not symptom syndromes; C. represents the Y potential phenotypes resulting from heterogeneity of symptom syndromes but not trajectories; D. represents the X*Y potential phenotypes resulting from heterogeneity of both symptom syndromes and trajectories.