The DSM-5 recognized that the separation anxiety disorder (SEPAD) may span the entire life course or have an adult-onset. Epidemiological data indicated a 23%–69% prevalence of SEPAD in clinical settings and a high comorbidity with both prolonged grief disorder (PGD) and post-traumatic stress disorder (PTSD). Some authors hypothesize that while life threat represents the key trigger of PTSD, disruptions or threats to interpersonal bonds lead to PGD and SEPAD. This study aims to test the hypothesis that adult-onset SEPAD might be a trauma-related disorder, triggered by events threatening to interpersonal bonds.

The sample included 106 consecutive adult outpatients with anxiety and/or mood disorders. SEPAD was diagnosed according to DSM-5 criteria by means of the Structured Clinical Interview for Separation Anxiety Symptoms (SCI-SAS). The Adult Separation Anxiety Checklist (ASA-27) was used to assess symptoms severity. To assess exposure to trauma, the SCID-5 criterion A form for PTSD was administered. Traumatic events were coded as directly experienced (self) or involving close ones (others). Lifetime exposure to separation events was also assessed.

60.4% of participants were categorized as not having SEPAD in adulthood or in childhood (NO-SEPAD), 18.9% as childhood-onset SEPAD, and 20.8% as adult-onset SEPAD. Controlling for comorbid disorders, lifetime traumatic events involving self and separation events, traumatic events involving others significantly predicted adult-onset SEPAD. A significant correlation between the age at trauma exposure and the age of SEPAD onset was found.

Our results are consistent with the hypothesis that adult-onset SEPAD may represent an event-related disorder.

Awareness of adult separation anxiety (ASA) is growing, but there is a dearth of knowledge about how separation anxiety aggregates in families. We examined the intergenerational associations of separation anxiety and other forms of internalizing problems in an American community sample of 515 predominantly white children and their parents.

Children's separation anxiety (CSA), depression, and other anxiety disorders were modeled as latent factors using diagnoses from interviews and symptom scores from questionnaires completed by mothers, fathers, and children when children were 9 years old and again 3 years later. Parents' separation anxiety was assessed via a questionnaire and parents' other anxiety, depressive, and substance use disorders were assessed with a diagnostic interview when children were nine. Relationships between parents' and children's psychopathology were modeled using s.e.m.

Mothers' and fathers' ASA were related to all three psychopathology factors in offspring, over and above other parental disorders, in concurrent and prospective analyses. CSA was also related to maternal depression concurrently and prospectively and to maternal anxiety prospectively. Of all paternal psychopathology variables, only ASA was significantly related to children's psychopathology in either model.

Results indicate that parental separation anxiety is an important, but non-specific, risk factor for children's psychopathology. The pathway by which this risk is transmitted may be genetic or environmental, and the observed statistical associations likely also encompass child-to-parent effects.