Clinical social workers, psychologists, and psychiatrists treating anxiety
disorders will often encounter comorbidity, particularly obsessive-compulsi
ve disorder, phobias, depression, substance abuse, and personality disorder
s. This article focuses on the assessment and treatment implications of com
orbidity. First, the authors discuss the most efficient diagnostic and asse
ssment methods. The authors then identify and discuss the special considera
tions in sequencing treatment. A determination needs to be made as to the p
rimary problem among the presenting comorbid disorders. The authors also di
scuss the advantages and disadvantages of single vs. multiple providers, an
d sequential vs. collateral treatment.