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. 2012 Feb;51(2):192–201.e5. doi: 10.1016/j.jaac.2011.11.004

FIGURE 2.

FIGURE 2

Overlap of Tourette syndrome (TS)/chronic tics (CT), obsessive-compulsive disorder (OCD) and attention-deficit/hyperactivity disorder (ADHD) diagnoses in the Avon Longitudinal Study of Parents and Children. (a) Comparison of overlap among TS, OCD, and ADHD cases using the TS Intermediate (TSi) definition. Note: Percentages indicate the fraction of subjects in each subgroup. Percentages on either side of the dotted line indicate the different fractional percent of individuals with overlapping conditions relative to the disorder of reference. For example, the five cases of TS+ADHD without OCD represent 10.2% of the total TS sample but only 3.1% of the ADHD sample. Similarly, the four TS+OCD+ADHD cases at the center of the diagram represent 8.2% of the TS sample but only 2.2% of the OCD and 2.5% of the ADHD samples, respectively. (b) Comparison of overlapping conditions between any chronic tic disorder (TS or CT), OCD and ADHD using the Intermediate case definitions of TS or CT (TSCTi).