PARPs vary widely across outcomes (inter-quartile range: 35.6-54.5%). (Table 4) The lowest PARPs in terms of the outcomes are associated with specific phobia (3.7%) and attention-deficit/hyperactivity disorder (6.9%), the two earliest-onset disorders. This reflects the low prevalence and generally insignificant association of prior disorders predicting these two disorders. A similar interpretation applies to separation anxiety disorder (SAD), the outcome disorder with the next lowest risk proportion (23.1%). SAD has a comparatively early AOO distribution and is predicted by a lower than average proportion of prior disorders. The other 12 disorders, when considered as outcomes, all have risk proportions of 35.0% or higher. Those with the highest risk proportions have comparatively late AOO distributions and are either significantly predicted by the majority of other disorders (alcohol abuse, bipolar disorder), very strongly predicted by a smaller number of other disorders (panic disorder, agoraphobia), or are less strongly predicted by highly prevalent disorders (generalized anxiety disorder).
