The same general pattern holds within each class of disorders. 50.0-100% of within-class ORs are significant vs. 15.9-64.3% of between-class coefficients. The percentage of significant between-class coefficients is much lower predicting fear (15.9%) than other (29.6-64.3%) disorders. One or two disorders are the most powerful within-class predictors in each class: specific phobia and social phobia among the fear disorders; major depression for distress disorders; and attention-deficit/hyperactivity and conduct disorders for behavior disorders. Fear disorders have the highest proportion of significant between-class coefficients predicting other disorders (52.3%) followed by distress (36.4%), behavior (29.6%), and substance (15.4%) disorders. Two of the three most consistent predictors are fear disorders: social phobia (81.8%) and specific phobia (72.7%), the other being major depression (72.7%).
