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Psychol Med. 2019 Mar 4:1-8. doi: 10.1017/S0033291719000254. [Epub ahead of print]

Optimizing the clinical utility of four proposed criteria for a persistent and impairing grief disorder by emphasizing core, rather than associated symptoms.

Author information

1
Center for the Study of Traumatic Stress,Uniformed Services University of the Health Sciences,Bethesda MD 20814,USA.
2
School of Social Work, Columbia University,New York, NY,USA.
3
University of Pittsburgh,Pittsburgh, PA,USA.
4
University of Zurich,Zurich,Switzerland.
5
New York University,New York, NY,USA.
6
Mailman School of Public Health,Columbia University,New York, NY,USA.
7
University of California,San Diego,San Diego, CA,USA.

Abstract

BACKGROUND:

Distinguishing a disorder of persistent and impairing grief from normative grief allows clinicians to identify this often undetected and disabling condition. As four diagnostic criteria sets for a grief disorder have been proposed, their similarities and differences need to be elucidated.

METHODS:

Participants were family members bereaved by US military service death (N = 1732). We conducted analyses to assess the accuracy of each criteria set in identifying threshold cases (participants who endorsed baseline Inventory of Complicated Grief ⩾30 and Work and Social Adjustment Scale ⩾20) and excluding those below this threshold. We also calculated agreement among criteria sets by varying numbers of required associated symptoms.

RESULTS:

All four criteria sets accurately excluded participants below our identified clinical threshold (i.e. correctly excluding 86-96% of those subthreshold), but they varied in identification of threshold cases (i.e. correctly identifying 47-82%). When the number of associated symptoms was held constant, criteria sets performed similarly. Accurate case identification was optimized when one or two associated symptoms were required. When employing optimized symptom numbers, pairwise agreements among criteria became correspondingly 'very good' (κ = 0.86-0.96).

CONCLUSIONS:

The four proposed criteria sets describe a similar condition of persistent and impairing grief, but differ primarily in criteria restrictiveness. Diagnostic guidance for prolonged grief disorder in International Classification of Diseases, 11th Edition (ICD-11) functions well, whereas the criteria put forth in Section III of Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) are unnecessarily restrictive.

KEYWORDS:

Accidental death; bereavement; combat death; complicated grief; persistent complex bereavement disorder; prolonged grief disorder; psychiatric nosology; suicide; violent death

PMID:
30829195
DOI:
10.1017/S0033291719000254

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