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. 2016 Jul 9;62(4):237–246. doi: 10.1177/0706743716640757

Figure 2.

Figure 2.

Mean age of onset estimates for anxiety disorders. Separation anxiety disorder (SAD; 4 studies; n = 388), specific phobia (SP; 11 studies; n = 7207), social phobia (SOP; 12 studies; n = 3407), agoraphobia without panic disorder (AwP; 8 studies; n = 1209), obsessive-compulsive disorder (OCD; 11 studies; n = 866), posttraumatic stress disorder (PTSD; 12 studies; n = 1459), panic disorder (PD; 11 studies; n = 3240), generalized anxiety disorder (GAD; 15 studies; n = 4422), and anxiety disorders in general (ANX; 14 studies; n = 7443). I 2 = 93.6%–99.7% (all P < 0.0001).