Inclusion of the other in the self as a potential risk factor for prolonged grief disorder : a comparison of patients with matched bereaved healthy controls

Kurzfassung/Abstract

Pathological grief has received increasing attention in recent years, as about A10% of the bereaved suffer from one kind it. Pathological grief in the form of Prolonged grief disorder (PGD) is a relatively new diagnostic category which has been introduced into the ICD-11 beta version in 2018. To date, various risk and protective factors, as well as treatment options for pathological grief, have been proposed. Nevertheless, empirical evidence in that area is still scarce. Our aim was to identify the impact interpersonal closeness with the deceased has on bereavement outcome.
Interpersonal closeness with the deceased in 54 participants (27 patients suffering from PGD and 27 bereaved healthy controls) was assessed as the overlap of pictured identities via the Inclusion of the Other in the Self Scale (IOS-scale). In addition to that, data on PGD symptomatology, general mental distress, and depression were collected.
Patients suffering from PGD reported higher inclusion of the deceased in the self. By contrast, they reported feeling less close towards another living close person. Results of the IOS-scale were associated with PGD-severity, general mental distress, and depression.
Inclusion of the deceased in the self is a significant statistical predictor for PGD-caseness.